verb (used without object)
Origin of blossom
Synonyms for blossom
Word Origin for blossom
c.1200, from Old English blostm, blostma "blossom, flower, fruit," from Proto-Germanic *blo-s- (cf. Middle Low German blosom, Dutch bloesem, German Blust), from PIE *bhlow-, extended form of *bhel- (3) "to thrive, bloom," possibly identical with *bhel- (2) "to blow, inflate, swell" (see bole). This is the native word, now largely superseded by bloom and flower.
late 14c., from Old English blostmian, from blostma "blossom, flower" (see blossom (n.)). Figurative use from late 14c. Related: Blossomed; blossoming.
Also, blossom out. Develop, flourish, as in She's blossomed into a fine young woman, or His business has blossomed out and he's doing well. [Second half of 1800s]