holla!
Ancient Greek word, found 12 times in the texts on Socratos.
Euripides, Cyclops 51: ὠή, ῥίψω πέτρον τάχα σου
Euripides, The Phoenician Women 1069: ὠὴ μάλʼ αὖθις· διὰ μακροῦ μέν, ἀλλʼ ὅμως