blossomyoudaoicibaDictYouDict[blossom 词源字典]
blossom: [OE] Blossom probably comes ultimately from an Indo-European base *bhlōs-, which was also the source of Latin flōs, from which English gets flower. It seems reasonable to suppose, in view of the semantic connections, that this *bhlōs- was an extended form of *bhlō-, from which English gets blade, bloom, and the now archaic verb blow ‘come into flower’.
=> blade, bloom, blow, flower[blossom etymology, blossom origin, 英语词源]
blossom (n.)youdaoicibaDictYouDict
c. 1200, from Old English blostm, blostma "blossom, flower, fruit," from Proto-Germanic *blo-s- (cognates: Middle Low German blosom, Dutch bloesem, German Blust), from PIE *bhlow-, extended form of *bhel- (3) "to thrive, bloom" (see folio). This is the native word, now largely superseded by bloom (n.1) and flower (n.).
blossom (v.)youdaoicibaDictYouDict
late 14c., from Old English blostmian, from blostma "blossom, flower" (see blossom (n.)). Figurative use from late 14c. Related: Blossomed; blossoming.