An old-fashioned or archaic plural form of 'pea,' the small round green vegetables; also a single pea in some dialects.
From Old English 'pise' and Latin 'pisa.' Originally 'pease' was singular and 'peason' was plural, but people confused it and 'pea' became the modern singular.
The English language got so confused about 'pease' that we accidentally created a new word—people heard 'pease' (singular) and removed the 's' thinking it was a plural, leaving us 'pea,' a bizarre backwards evolution of a word.
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