ἀναστενάχω
From LSJ
τὸ δ' ἐξαίφνης τὸ ἐν ἀναισθήτῳ χρόνῳ διὰ μικρότητα ἐκστάν → suddenly refers to what has departed from its former condition in a time imperceptible because of its smallness
English (LSJ)
c. acc. pers.,
A groan aloud over, bemoan, bewail aloud, ib.23.211:—so in Med., 18.315,355.