jocund
Concise Oxford English Dictionary © 2008 Oxford University Press:
jocund /ˈdʒɒk(ə)nd, ˈdʒəʊk-/
▶adjective formal cheerful and light-hearted.
– derivatives
jocundity noun (pl. jocundities),
jocundly adverb.
jocundity noun (pl. jocundities),
jocundly adverb.
– origin ME: via OFr. from L. jocundus, var. (influenced by jocus ‘joke’) of jucundus ‘pleasant, agreeable’.
'jocund' also found in these Oxford entries:

