ἀνάγκᾳ δ' οὐδὲ θεοὶ μάχονται → but not even gods fight necessity (Simonides, fr. 37.1.29)
adj.
Liable to give account: P. and V. ὑπεύθυνος, P. ὑπαίτιος, ὑπόλογος, ἔνοχος.
The cause of: P. and V. αἴτιος (gen.); see liable.