Third person singular present tense of the verb 'brash,' though this usage is archaic or dialectal; alternatively, plural noun form referring to multiple instances of brashness or rash behavior.
Either from the verb 'brash' (to act rashly), or plural of the noun 'brash.' The verbal form is rare in modern English, appearing mainly in dialectal or archaic texts.
Some verbs in English (like 'brash') are rarely used as verbs even though they can be, which shows that language is always changing how people actually use words.
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