also left-over, "remaining, not used up," 1890, from left + over. The noun meaning "something left over" is from 1891; leftovers "excess food after a meal" (especially if re-served later) is from 1878; in this sense Old English had metelaf.
leftover meatloaf
left-handed
left-hander
leftish
leftism
leftist
leftover
leftward
left-wing
lefty
*leg-
leg