twit1
¦ noun informal, chiefly Brit. a silly or foolish person.
Derivatives
twittish adjective
Origin
1930s (orig. dialect, in the sense 'tale-bearer'): perh. from
twit2.
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twit2
¦ verb (twits, twitting, twitted) informal tease, especially good-humouredly.
Origin
OE ?twitan 'reproach with', from ?t 'at' + witan 'to blame'.