The English word "conviviality" means "the enjoyment of festive society, festivity", or, as applied to people, "convivial spirit or disposition". Conviviality, or Convivialism, is the ability of individuals to interact creatively and autonomously with others and their environment to satisfy their own needs. This interpretation is related to, but distinct from, several synonyms and cognates, including in French the enjoyment of the social company of others (convivialité), Catalan social cohesion policy (Convivència), and its contemporary understanding in English of living together with difference and diversity. This interpretation was introduced by Ivan Illich as a direct contrast to industrial productivity that produces consumers that are alienated from the way that things are produced. Its focus on joyful simple living, the localisation of production systems, links to Marxist economics, and Illich’s simultaneous criticism of overconsumption have resulted in conviviality being taken up by a range of academic and social movements, including as a pillar of degrowth theory and practice. One root of conviviality originated in 19th‐century France. Convivialité is very common in contemporary French and has also established itself in English as a loanword, as well as more recently as a term in discussions about cohabitation in immigrant societies. Its coinage can be traced back to Jean Anthelme Brillat-Savarin and his book Physiologie du goût from 1825. The gastrophilosopher understood conviviality as the situation, common at the table, when different people come together over a good long meal, and time passes swiftly in excited conversations. Social connection In Spanish, convivencia has long been interpreted literally as “living in the company of others” but in 1948 Américo Castro introduced la convivencia to mean the peaceful coexistence between different religious groups in Spain between the eighth and fifteenth centuries. As described here, the term conviviality was introduced by Ivan Illich in his 1973 book, Tools for Conviviality.