Where does “ID” come from?

ID (Translingual) comes from English identity, from Middle English ydemptite.

ID (Translingual): A Roman numeral representing four hundred and ninety-nine (499)

Definitions

  1. A Roman numeral representing four hundred and ninety-nine (499)

Ancestry of “ID”, step by step

StepLanguageWordMeaning
1EnglishidentitySameness, identicalness; the quality or fact of (several specified things) being the same
2Middle Englishydemptite
Every word from Middle English ydemptite