In the manner of a cuckold; characteristic of or resembling the behavior or condition of someone whose partner is unfaithful.
From 'cuckold' with the '-ly' adverbial or adjectival suffix, an archaic or literary formation.
The '-ly' suffix turns nouns and adjectives into adverbs or descriptive adjectives—'cuckoldly' is archaic, but it shows how Old English was more flexible about stacking suffixes than modern English.
Adjectival/adverbial form of cuckold; rare but carries same gendered emasculation frame.
Avoid; archaic and contemptuous.
["with betrayal","in a deceiving manner"]
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