Middle English ote, from Old English āte, from Proto-Germanic *aitōn (“swelling”) (compare Old High German eiz (“abscess”), Dutch etter (“pus”), East Frisian eitel (“fast, raging”), Old Norse eitill (“nodule”)), from Proto-Indo-European *h₁eid- (“to swell”) (compare Latin aemidus (“swollen, protuberant”), Old Church Slavonic ꙗдъ (jadŭ, “poison”), Ancient Greek οἰδέω (oideō, “to swell”), Old Armenian այտնում (aytnum, “to swell”), այտ (ayt, “cheek”), Sanskrit इन्दु (índu, “water drop”). For sense development, compare Ancient Greek oídax 'unripe fig' from oîdos 'swelling, tumor'.
- (uncountable) Widely cultivated cereal grass, typically Avena sativa.
- The oat stalks made good straw.
- The main forms of oat are meal and bran.
- World trade in oat is increasing.
- (countable) Any of the numerous species, varieties, or cultivars of any of several similar grain plants.
- The wild red oat is thought to be the ancestor of modern food oats.
- (usually as plural) The seeds of the oat, harvested as a food crop.
Derived terms 
- The translations below need to be checked and inserted above into the appropriate translation tables, removing any numbers. Numbers do not necessarily match those in definitions. See instructions at Help:How to check translations.
See also 
- Plural form of oka