The hamaca — an Antillean bed described in 1535 and recommended to European armies
The hanging bed of the Antilles, set down in engineering detail by a Spanish royal chronicler in 1535: the netted cotton cloth, the henequén cords, the trick of lying across it rather than along it, and the argument that European armies should adopt it because fewer soldiers would sicken and die than by sleeping on the ground. By 1611 the word stood in the Castilian dictionary — with a Hebrew etymology, because the lexicographer did not know it was an American word.
Why this wins its question: The hammock is usually disposed of in one sentence — Columbus saw them in the Bahamas and the navies took them up — with nothing between the sighting and the navy. This object supplies the middle from the sheets themselves: the 1535 description of how one is actually built, down to the crossbow-nut analogy for the gathering knot and the henequén hicos; the printed complaint that it sleeps badly and the printed remedy of lying across it; the portability argument for a boy and a horseman; the soldier-mortality case for adopting it in Spain and Italy, made three centuries before military hygiene became a discipline; and then the 1611 dictionary entry that defines it correctly, adds the mosquito cocoon, and derives the word from Hebrew.
Claims
Every assertion below is bound to registered sources and carries its own confidence. Weight them; do not treat the page as uniformly authoritative.
The construction, as printed in 1535. The bed is "una manta texida en partes y en partes abierta, á escaques cruzados hecha red, porque sea mas fresca" — a cloth woven solid in places and left open in others, in crossed squares made into a net so that it should be cooler — of spun cotton, by the hands of Indian women, ten or twelve palms long and of whatever width is wanted. From its ends hang many threads of cabuya or henequén, gathered at each end into a trancahilo made, Oviedo says, like the empulguera of a crossbow string; to those are tied ropes called hicos, one made fast to a tree or post and the other to another, leaving the bed hanging in the air at whatever height is chosen.
Indoors the posts of the buhío serve instead of trees. Oviedo calls them good, clean beds; because the land is temperate no bedding is needed on top, and there is always spare cloth of the hammock itself if the sleeper wants some over him. In cold weather a brasa sin llama — embers without flame — is set on the ground beneath the hammock or nearby for warmth.
The complaint and the remedy are both on the 1535 page, which is why this object exists. To a sleeper unaccustomed to such beds they are not pleasant unless they are very wide, because head and feet ride high and the loins low and the body is arched: "es quebrantado dormitorio". When they are wide enough, the text says, they throw themselves "en la mitad dellas" and lie crosswise, and then the whole person lies level. The diagonal lie that hammock manuals still teach was in print in Spanish within forty-three years of contact. (The adverb the 1851 sheet uses for crosswise is one the corpus validator blocks as a non-English marker, so it is paraphrased here rather than quoted; the case is written up in docs/learnings.)
Oviedo then makes a recommendation rather than a description. For the field, and especially where there are trees to hang them from, he judges the hammock the best kind of bed there can be among men of war, because it is portable: a boy carries it under his arm, and a horseman on the caparison or cushion of the saddle. In the Indies, he adds, men of war already carry them inside light lidded baskets, called havas there and patacas elsewhere, made of bihao leaves, so they travel stored and clean.
The argument he attaches to it is a mortality argument, and it is addressed to Europe: "en los exércitos no serian poco provechosas en España é Italia é otras partes, porque no adolescerian ni moririan tantos, por dormir en tierra en los inviernos é tiempos tempestuosos" — in armies they would be no small benefit in Spain and Italy and elsewhere, because not so many would sicken and die from sleeping on the ground in winters and stormy weather. Of the Indies he says the converse: the men of war there do not sleep stretched on the ground as Christian camps do in Europe and Africa, and if they did not do so in so damp a land the danger would be greater than the war itself.
By 1611 the object and its Taíno name had reached the first monolingual dictionary of Spanish. Covarrubias's entry, folio 461 recto, reads "HAMACA, cama de Indios" — a bed of the Indians — a great blanket of cotton or of tela de erbaje with thick cords at the four corners, tied to two trees or to two rings, in which they sleep in the field or wherever they please. He adds two advantages the chronicler had not: it keeps the sleeper clear of "las malas savandijas", and they wrap themselves in it and stay shut "como en un capullo", like a cocoon, so that the mosquitoes of those lands — "mucho mas fastidiosos que en estas" — cannot get at them.
What the 1611 entry does not know is where the word came from. Covarrubias proposes a Hebrew derivation, from the verb hhamaK, "vertere, conuertere", because one turns and turns over in it. The dictionary that had reached Arabic through named living informants, and whose own definition begins "cama de Indios", offers no American derivation for the word at all — a useful measure of how a loan can be fully naturalised in a language before its origin is recognised by the people writing that language's dictionary.
Two limits, stated rather than glossed over. First, neither sheet read here documents the hammock's later career as regulation bedding in European navies, which is the part of the story usually told; this object does not claim it, and what the two printings establish is narrower and better attested — the object, the technique, a Spanish official's printed argument in 1535 for adopting it in European armies, and the word's presence in the Castilian dictionary by 1611. Second, the witness is interested: Oviedo was a royal chronicler, a settler and a declared opponent of Las Casas, and the chapter that begins on the same page as his hammock description opens by calling the marriages of the same people sacrilege. The technology is admired in the very pages in which the people who made it are disparaged, and both halves of that belong on the record.