Birthdate

Part of speech: noun

Definitions

1. The specific day, month, and year on which a person was born, marking the starting point of life and often used to determine age or astrological sign
2. The recorded date indicating when an individual entered the world, commonly utilized for identity verification and chronological reference
3. The calendar date signifying the moment of a person's origin, serving as a key detail in personal history and legal documentation

Etymology: The term "birthdate" is a relatively straightforward compound formed by joining "birth" and "date." Its origins lie in the simple combination of the concept of one's birth—the event marking the beginning of life—and the specific calendar date on which that event occurs. This kind of compound formation is typical in English, where two existing words are combined to create a new term with a precise meaning. The word "birth" itself comes from Old English "berthan," meaning to bear or bring forth, and "date" derives from Latin "datum," meaning "something given," which evolved to signify a point in time marked on a calendar. The use of "birthdate" as a noun to denote the specific day someone was born likely emerged in English around the 19th or early 20th century. Before that, people more commonly used phrases like "date of birth," which remains in formal and official contexts. The compound form provides a more concise, colloquial alternative that quickly became popular in everyday speech, especially as record-keeping and identification practices became more standardized. While "birthdate" carries no dramatic shifts in meaning or surprising etymological twists, its formation shows how English readily creates new vocabulary by combining familiar elements. This process allows speakers to express new or specific ideas efficiently without needing to borrow from other languages or invent entirely new roots. The word neatly encapsulates both the event and its temporal marker in a single, convenient term.

Synonyms: birthday, date of birth