incest

/ˈɪn.sɛst/ · noun

Meaning

Sexual relations between close relatives, especially immediate family members and sometimes first cousins, usually considered taboo.
Romantic relationships between close relatives, also widely taboo.
To engage in incestuous sexual activities.

Etymology / origin

Learned borrowing from Latin incestus. Displaced Old English mǣġhǣmed (literally “relative-sex”). Doublet of inchaste.

mǣġhǣmed(ang)→
incestus(Latin)→
incest (English)
Relations: lbor, cog

Related words

incestus(Latin)mǣġhǣmed(ang)insesti(Finnish)インセスト(Japanese)

Descendant words

insesti(Finnish) (cog)
インセスト(Japanese) (bor)

Sources

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