CUCKOLDING

Noun

cuckolding (plural cuckoldings)

adultery (extramarital sexual intercourse)

Verb

cuckolding

present participle of cuckold

Source: Wiktionary

CUCKOLD

Cuck"old (kk"ld), n. Etym: [OE. kukeweld, cokewold, cokold, fr. OF. coucoul, cucuault, the last syllable being modified by the OE. suffix -wold (see Herald); cf. F. cocu a cuckold, formerly also, a cuckoo, and L. cuculus a cuckoo. The word alludes to the habit of the female cuckoo, who lays her eggs in the nests of other birds, to be hatched by them.]

1. A man whose wife is unfaithful; the husband of an adulteress. Shak.

2. (Zoöl.) (a) A West Indian plectognath fish (Ostracion triqueter). (b) The cowfish.

Cuck"old, v. t. [imp. & p. p. Cuckolded;p. pr. & vb. n. Cuckolding.]

Definition: To make a cuckold of, as a husband, by seducing his wife, or by her becoming an adulteress. Shak.

Source: Webster’s Unabridged Dictionary 1913 Edition