hópōs àn apolisthánoi kaì mḕ ékhoi antilabḕn hē kheír
so IRR slip.off.3SG.PRS.OPT and not have.3SG.PRS.OPT hold.ACC.SG the.F.NOM.SG hand.NOM.SG
… so that the hook would slip off and not take hold.' (Thucydides 7.65.2)