προσημαίνειν
From LSJ
ὄρνιθι γὰρ καὶ τὴν τότ᾽ αἰσίῳ τύχην παρέσχες ἡμῖν → for it was by a good omen that you provided that past fortune to us
Greek > English (Woodhouse Verbs Reversed)
(see also προσημαίνω): announce, betoken, declare, portend, predict, show beforehand, show by signs beforehand, signify