a flat, surface (outer, flat or curved side of something) · a plane · the entirety of radio or television programs broadcast by a particular channel (within a particular period of time)
köken: From Old Irish lecc, from Proto-Celtic *ɸlikkā, from Proto-Indo-European *pl̥keh₂ (“flat surface”), from Proto-Indo-European *pleh₂- (“flat”). Celtic cognates include Welsh llech, Breton lec'h, Cornish legh, and Gaulish Are-lica (toponym). Indo-European cognates include Ancient Greek πλάξ (pláx, “flat stone”).
aile: bain as an leac, bonnleac, bundún leice, cuir ar an leac, faoi leac, idir leac is losaid, leac chloiche, leac chruaite, leac chruaiteacháin, leac chuimhneacháin
From Middle Chinese 平板 (MC bjien|bjaeng paenX). The historical agricultural sense for a leveling tool is attested in the 1639 Ming dynasty Chinese treatise Nongzheng Quanshu (read in Japan via kanbun kundoku): * 1639, Nongzheng Quanshu [“Complete Treatise on Agriculture”], 農器・圖譜二 (“Agricultural Implements: Illustrated Catalog, Part 2”) *: 平板、平^㆓摩^㆑種秧泥田^㆒器也、用^㆓滑面木板^㆒、長廣相稱、上置^㆓兩耳^㆒、繫^㆓索連^㆑軛駕^㆑牛 The…