the genesis of jargons and argots such as Caló, a natural language used by Gitanos that mixes a Spanish grammar with Romany vocabulary. See also Stratum (linguistics) Notes References Wittmann, Henri (1989), "Relexification et argogenèse," Communication, 1er Colloque international d’argotologie, Université de Besançon, Oct. 13-1, 1989 Further reading Arends, Jacques, Pieter Muysken & Norval Smith. 1995. Pidgins and Creoles: an introduction. Amsterdam: Benjamins. Sebba, Mark. 1997. Contact Languages: Pidgins and Creoles. Houndmills, Basingstoke, Hampshire and London: Macmillan Press. External links Pidgins and creoles