would that
From LSJ
English > Greek (Woodhouse)
verb transitive
refering to a future wish: P. and V. εἴθε (opt.), εἰ γάρ (opt.), V. εἰ (opt.). Ar. and V. πῶς ἄν (opt.).
referring to a past wish: P. and V. εἴθε (imperf. or aor. indic.). εἰ γάρ (imperf. or aor. indic.), ὤφελον (infin.), εἴθ' ὤφελον (infin.), εἰ γὰρ ὤφελον (infin.).