incestuous
UK[ɪnˈsɛstʃuəs]US[ɪnˈsɛstʃuəs]
adj
involving or guilty of incest.
adj
(of human relations generally) excessively close and resistant to outside influence.
Morpheme Breakdown
in
cest
uous
in
not, into
cest
pure, chaste
uous
adjective suffix
Etymology
the word 'incestuous' traces its lineage directly to latin incestus, meaning "impure, unchaste." this latin term itself was formed by combining the negative prefix in- (meaning "not") with the adjective castus ("pure, chaste"). the core concept of castus is thought to derive from a proto-indo-european root meaning "to cut," suggesting a sense of being "cut off" from impurity or moral stain. therefore, the literal construction "not chaste" specifically evolved in latin, and later english, to denote the profound violation of sexual purity defined by kinship boundaries, with the suffix '-uous' solidifying its adjectival form describing a state characterized by this taboo.
Analysis
Structure: in (not, into) + cest (pure, chaste) + uous (adjective suffix)
- in: a latin prefix meaning "not" or "into".
- cest: from latin castus, meaning "pure, chaste, morally clean".
- uous: a latin-derived adjective-forming suffix meaning "full of, characterized by".
Examples
the novel explores the dark secrets of an incestuous family dynasty.
the small, insular community was criticized for its incestuous political alliances.
accusations of an incestuous relationship between the royal siblings caused a scandal.