the.com/betray
To stab someone in the back while looking them dead in the eye.
means To break someone's trust, especially by helping their enemy or revealing a secret meant to be kept.
from From Old French trair via Latin tradere, to hand over — the same root as traitor and tradition, betrayal being a gift nobody wanted.
Inadvertent kindA blush can betray you without consent.
Judas premiumThirty silver pieces, the world's most infamous fee.
Tradere twinsShares roots with both treason and tradition.