from Wiktionary, Creative Commons Attribution/Share-Alike License
- proper n. Abbreviation of January.
- proper n. A male given name
- proper n. A female nickname, sometimes used as a formal given name.
- proper n. A male given name, in English mostly applied to foreign language speakers.
From Old French Jehan ("John") (Wiktionary)
Shortened from Janet and Janice. (Wiktionary)
From Polish, Czech, German, Dutch, modern Scandinavian etc. Jan, from Latin Johannes ("John"). (Wiktionary)