a word spoken is past recalling
Definition:  it is impossible to withdraw one's words or undo their effects once they have been spoken aloud
Usage:  A: "I told her I was sorry for what I said. I was only joking, but I should have known better." B: "It's going to take more than that to win her back; a word spoken is past recalling.”

SEPEDI
Translation:  lentšu leo le boletšwego ga le gopolege
Proverb: lentšu ga le boe, go boa monwana

XITSONGA
Translation:  rito leri u ri vulavuleke a ra ha tlheriseki
Proverb: nomu a wu tlheli ku tlhela rintiho

TSHIVENḒA
Translation:  ipfi ḽo bulwaho a ḽi tsha humiselwa murahu
Proverb: ipfi ndi musevhe, ḽa poswa, ḽo ya