compersion

Etymology
, probably following the model of dispersion. Less likely a derivation from the root of the 🇨🇬 verb + prefix. Another hypothesis that it may be derived from, based on an earlier use of the French  to denote the practice of brothers-in-law sharing wives observed among  of the Brazilian Amazon, is less plausible: not only does it not correspond to any known morphological process, but a website run by former members of the community clearly states that neither the word compérage nor Lévi-Strauss's book were known to them at the time.

Noun

 * 1)  Vicarious joy associated with seeing one's partner have a joyful romantic or sexual relation with another.
 * 2) * 2006, Ronald C. Fox, Ph.D. (editor), Affirmative Psychotherapy with Bisexual Women and Bisexual Men, Haworth Press, ISBN 1560232994, page 140
 * Some polyamorous people experience compersion, which means feeling joy that one’s partner is sharing closeness with another person (Keener, 2004; Polyamory Society, 1997). Keener’s (2004) study participants noted an absence of worry as to whether their partners might be cheating
 * 1) * 2006, Ronald C. Fox, Ph.D. (editor), Affirmative Psychotherapy with Bisexual Women and Bisexual Men, Haworth Press, ISBN 1560232994, page 140
 * Some polyamorous people experience compersion, which means feeling joy that one’s partner is sharing closeness with another person (Keener, 2004; Polyamory Society, 1997). Keener’s (2004) study participants noted an absence of worry as to whether their partners might be cheating
 * 1) * 2006, Ronald C. Fox, Ph.D. (editor), Affirmative Psychotherapy with Bisexual Women and Bisexual Men, Haworth Press, ISBN 1560232994, page 140
 * Some polyamorous people experience compersion, which means feeling joy that one’s partner is sharing closeness with another person (Keener, 2004; Polyamory Society, 1997). Keener’s (2004) study participants noted an absence of worry as to whether their partners might be cheating

Translations

 * Finnish: myötäilo
 * French:
 * German: Mitfreude
 * Italian: compersione
 * Norwegian:
 * Polish: wspólna radość, wzajemna radość, współradość
 * Portuguese: