C14: from Late Latin jocundus, from Latin jūcundus pleasant, from juvāre to please
Word Origin and History for jocund
adj.
late 14c., from Latin iocundus (source of Spanish jocunde, Italian giocondo), variant (influenced by iocus "joke") of Latin iucundus "pleasant," originally "helpful," contraction of *iuvicundus, from iuvare "to please, benefit, help" (see adjutant).