over- /əʊvə $ oʊvər/ BrE AmE prefix
1 . too much:
overpopulation
overcooked vegetables
overweight
2 . above; beyond; across:
overhanging branches
overhead telephone wires
the overland route (=not by sea or air)
3 . outer:
an overcoat
4 . additional:
We were working overtime (=working beyond the usual time) .