Main Entry: al·go·lag·nia

Pronunciation: \ˌal-gō-ˈlag-nē-ə\

Function: noun

Etymology: New Latin, from Greek algos pain + lagneia lust, from lagnos lustful — more at slack

Date: circa 1900

: a perversion (as sadism or masochism) characterized by pleasure and especially sexual gratification in inflicting or suffering pain

— al·go·lag·ni·ac \-ˈlag-nē-ˌak\ noun