birthday

English

/ˈbɜːθ.deɪ/, /ˈbɜːθ.dɪ/, /ˈbɝθˌdeɪ/

noun
Definitions
  • The anniversary of the day on which someone is born.
  • The anniversary of the day on which something is created.
  • The date on which someone is born or something is created, more commonly called birthdate (birthdate) or date of birth (date of birth).

Etymology

Inherited from Middle English birthdai inherited from Old English ġebyrddæġ (birthday) com from English birth + English day.

Origin

English

day

Gloss

Timeline

Distribution of cognates by language

Geogrpahic distribution of cognates

Cognates and derived terms