so·bri·quet 
(sōbrĭ-kā′, -kĕt′, sō′brĭ-kā, kĕt) also sou·bri·quet (sbrĭ-kā′, -kĕt′, s′brĭ-kā, -kĕt′)
(sōbrĭ-kā′, -kĕt′, sō′brĭ-kā, kĕt) also sou·bri·quet (sbrĭ-kā′, -kĕt′, s′brĭ-kā, -kĕt′)n.
1. An affectionate or humorous nickname.
2. An assumed name.
[French, from Old French soubriquet, chuck under the chin.]