hayhenny

== English == === Etymology === From Spanish jejenes, plural of jején (“midge”). === Noun === hayhenny (plural hayhennies) (rare) A small biting midge (especially in Latin America); a noseeum. 1926, Hart Crane, letter, 30 July: Certainly the hayhennies and crowing roosters (at all times of nights) and the breathlessness of the “air” don't encourage one to slumbers.