fond of feasting, drinking, and merry company; jovial.
3.
of or befitting a feast; festive.
Origin: 1660–70; < LL convīviālis festal, equiv. to L convīvi(um) feast (convīv(ere) to live together, dine together (con-con-+ vīvere to live) + -ium-ium) + -ālis-al1