vagabond: [15] A vagabond is etymologically a ‘wanderer’. The word comes via Old French vagabond from Latin vagābundus, which was derived from vagārī ‘wander’ (source also of English termagant, vagary [16], and vagrant [15]). And vagārī in turn was based on vagus ‘wandering, undecided’ (source also of English vague [16]). => termagant, vagary, vagrant, vague
vagabond (adj.)
early 15c. (earlier vacabond, c. 1400), from Old French vagabond, vacabond "wandering, unsteady" (14c.), from Late Latin vagabundus "wandering, strolling about," from Latin vagari "wander" (from vagus "wandering, undecided;" see vague) + gerundive suffix -bundus.
vagabond (n.)
c. 1400, earlier wagabund (in a criminal indictment from 1311); see vagabond (adj.). Despite the earliest use, in Middle English often merely "one who is without a settled home, a vagrant" but not necessarily in a bad sense. Notion of "idle, disreputable person" predominated from 17c.