# nullius filius

> English word · Noun

## Definitions
1. A child of unknown parentage; an orphan.
2. The son of no one; a bastard.

## Etymology
Borrowed from Medieval Latin nullius filius (“nobody's son”), from Latin nullius + filius.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-09-03.
Canonical page: https://plainspell.com/en/word/nullius-filius