I. chis ‧ el 1 /ˈtʃɪz ə l/ BrE AmE noun [countable]
[ Date: 1300-1400 ; Language: Old North French ; Origin: probably from chisoir , from Vulgar Latin caesorium 'cutting tool' , from Latin caedere 'to cut' ]
a metal tool with a sharp edge, used to cut wood or stone
II. chisel 2 BrE AmE verb ( past tense and past participle chiselled , present participle chiselling British English , chiseled , chiseling American English ) [transitive]
to use a chisel to cut wood or stone into a particular shape
chisel something into/from/in etc something
Martin chiselled a hole in the door for the new lock.