From Latin 'tardus' (slow, sluggish) — etymologically about speed rather than punctuality, shared with musical 'ritardando.'
Delaying or delayed beyond the expected time; late.
From Latin 'tardus' (slow, sluggish), via Old French 'tardif.' The same root gives us 'retard' (to slow down) and musical 'ritardando' (gradually slowing). Being tardy is etymologically about speed, not punctuality — you're slow, not late. Key roots: tardus (Latin: "slow, sluggish").