Where does “郎子” come from?

郎子 (Japanese) comes from Japanese つ, from Old Japanese つ.

郎子 (Japanese): a familiar or friendly term for a young man

Definitions

  1. a familiar or friendly term for a young man

Ancestry of “郎子”, step by step

郎子 traces back through two separate lines of ancestry.

via Japanese つ

StepLanguageWordMeaning
1Japaneseつindicates the completion of an action; indicates...
2Old Japaneseつ—

via Japanese いら

StepLanguageWordMeaning
1Japaneseいらkinship through the same mother
Every word from Old Japanese つ →Every word from Japanese つ →