köken: From Middle High German höuwe, houwe, höu, from Old High German hewi, houwi, hou, from Proto-West Germanic *hawi, from Proto-Germanic *hawją. Cognate with Old Norse hey (Danish hø), English hay, Gothic 𐌷𐌰𐍅𐌹 (hawi).
köken: Inherited from Latin fēnum, early monophthongized variant of faenum, from Proto-Indo-European *dʰeh₁(y)-no-, from *dʰeh₁(y)-. Compare English fennel and fenugreek.
aile: fiebre del heno, henar, heno blanco, heno leñoso, tener alguien el hen, traer heno, en el cuerno
köken: From Latin faenum (“hay”), which derives from Proto-Indo-European *dʰeh₁(y)-no-, from *dʰeh₁(y)-. Another proposed etymology is a Vulgar Latin *flēnum, from a blending of flōs (“flower”) and faenum. Cognate with Sicilian frenu.
aile: paglia e fieno, febbre da fieno, fienaio, fienile, fienoso
köken: Inherited from Proto-Slavic *sě̑no, from Proto-Balto-Slavic *śéinas, *śáinan, probably from Proto-Indo-European *(s)ḱóh₁y-no-, from the root *(s)ḱeh₁y- (“to shine, shimmer”).