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English word half birthday comes from English half, English birthday.

Half birthday etymology ?

Half birthday detailed word origin explanation

Dictionary entryLanguageDefinition
half English (eng) (transitive, obsolete) To halve. (obsolete) part; side; behalf. (preceded by “a” or a number) The fraction obtained by dividing 1 by 2.. (slang) A half sibling.. (sports) One of the two opposite parts of the playing field of various sports, in which each starts the game.. Any of the three terms at Eton College, for Michaelmas, Lent, and summer.. Half of a standard measure; frequently used [...]
birthday English (eng) (intransitive, informal) To celebrate one's birthday. The anniversary of the day on which someone is born. [From 1570s]. 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 or date of birth.
half birthday English (eng) The day halfway in between two consecutive birthdays.

Words with the same origin as half birthday

Descendants of half
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