algolagnia
/ˌalɡə(ʊ)ˈlaɡnɪə
/noun [mass noun] Psychiatry
Desire for sexual gratification through inflicting pain on oneself or others; sadomasochism.
Derivatives
algolagnic
Origin
Early 20th century: coined in German from Greek algos 'pain' + lagneia 'lust'.