spousebreachEtymologyFrom Middle English spousebreche; equivalent to spouse + breach. Compare Middle English spousebruche (“adultery”), Middle English spousebrekinge (“adultery”), Old English ǣwbryċe (“adultery”), German Ehebruche (“adultery”).spousebreach means adultery. Lexicurio rates it Sui generis — a strength score of 87 out of 100.nounAdultery