Past tense of 'claver': engaged in chattering or gossiping; or (as adjective) characterized by excessive talk or gossip.
From 'claver' (to chatter, gossip) + '-ed' (past tense or adjectival suffix). Scottish dialect origin.
This dialectal word shows how English regions develop their own vocabulary for human behaviors—'clavered' captures that specific tired feeling of listening to someone ramble on endlessly.
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