I. ˈkōk noun
Etymology: perhaps from dialect coke, colk core, from Middle English; akin to Swedish kälk pith
Date: 1669
: the residue of coal left after destructive distillation and used as fuel ; also : a similar residue left by other materials (as petroleum) distilled to dryness
II. verb
( coked ; cok·ing )
Date: 1763
transitive verb
: to change into coke
intransitive verb
: to become coke or like coke
III. noun
Etymology: by shortening & alteration
Date: circa 1903
: cocaine