once etymology

English word once comes from Proto-Indo-European *óynos (One. Single.)

Detailed word origin of once

Dictionary entryLanguageDefinition
*óynos Proto-Indo-European (ine-pro) One. Single.
*ainaz Proto-Germanic (gem-pro) (in the plural) some. (in the singular) one.
ān Old English (ang)
ones Middle English (enm)
once English (eng) As soon as; when; after. (frequency) One and only one time.. (mathematics) Multiplied by one: indicating that a number is multiplied by one.. (obsolete) At a future time.. (temporal location) Formerly; during some period in the past.. As soon as.

Words with the same origin as once

Descendants of *óynos
a an and another any anybody anymore anyone anything anyway anywhere around first for in no none nothing on one only round second someone