"to eat too much," 1590s, from over- + eat (v.). Related: Overate; overeating. Old English had oferæt (n.) "gluttony;" oferæte (adj.) "gluttonous, excessive eating."
overdraw
overdress
overdrive
overdub
overdue
overeat
overeducated
overestimate
overestimation
overexcite
overexcitement