verb/e.pa.nwiʁ/
to blossom; to bloom; to flower; to reveal its qualities; to thrive, flourish
From earlier espanouir, from Old French espannir, espanir, espandir, either from Latin expandere or a Germanic loan from Frankish *spannjan, from Proto-Germanic *spannō, from Proto-Indo-European *(s)pend- (cognate with English span).