Etymology
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adulterous (adj.)

c. 1600, a classical correction (replacing earlier avoutrious "addicted to adultery," c. 1400), from obsolete verb adulter (see adulterer) + -ous. Related: Adulterously. Adulterine (1640s, from Latin adulterinus) was used in the sense "pertaining to adultery, born of adultery."

Entries linking to adulterous

adulterer (n.)
early 15c., agent noun from obsolete verb adulter "commit adultery; adulterate, make impure, pollute" (late 14c.), from Latin adulterare "to corrupt" (see adulteration). The earlier form in Middle English was avouter (c. 1300), avoutrer (late 14c.), "person (usually a man) guilty of adultery," from Old French avoutrier, from the Latin verb, or from Latin adulter "adulterer, seducer," noun use of an adjective.
-ous 
word-forming element making adjectives from nouns, meaning "having, full of, having to do with, doing, inclined to," from Old French -ous, -eux, from Latin -osus (compare -ose (1)). In chemistry, "having a lower valence than forms expressed in -ic."

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Definitions of adulterous

adulterous (adj.)
not faithful to a spouse or lover;
adulterous husbands and wives
Synonyms: cheating / two-timing
adulterous (adj.)
characterized by adultery;
an adulterous relationship
Synonyms: extramarital / extracurricular
From wordnet.princeton.edu

Dictionary entries near adulterous

adulterant

adulterate

adulteration

adulterer

adulteress

adulterous

adultery

adulthood

adumbrate

adumbration

advance

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