birthday
n.
late 14c., from Old English byrddæg, "anniversary celebration of someone's birth" (at first usually a king or saint); see birth, n. + day. Meaning "day on which one is born" is from 1570s. Birthnight is attested from 1620s.
| 词汇 | birthday |
| 词根词缀 | Online Etymology Dictionary birthday n. late 14c., from Old English byrddæg, "anniversary celebration of someone's birth" (at first usually a king or saint); see birth, n. + day. Meaning "day on which one is born" is from 1570s. Birthnight is attested from 1620s. |
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