effulgent

Etymology

Comes from Latin effulgēns (“flashing, glittering”), the present participle of effulgeō (“to shine or gleam forth, flash, glitter”), itself formed from ē- (a variant of the prefix ex-, meaning ‘out; away’) and fulgeō (“to flash, gleam, glisten, glitter, shine”), which goes back to Proto-Indo-European *bʰel- (“shiny; white”). By surface analysis, it is built from ef- + Latin fulg(ere) + -ent.