iocundus

Etymology
From earlier, with the vowel altered on the basis of — unstressed short ŏ and long ō came to be pronounced identically by the Late Latin (or Proto-Romance) period.

Pronunciation


More often attested as iōcundus, the alternative iŏcundus is found in the poet Avianus (dactylic pentameter): Grātĭă reddātur | undĕ iŏcundă vĕnit.