Etymograph

English

self-assertion

From self- + assertion.

A compound of self- + assertion

Proto-Indo-European *selbʰ-

Proto-Germanic *selbaz ‘self’

Proto-Germanic *selba-

English self-

Proto-Indo-European *ser- ‘to flow’

…

Proto-Italic *adserō ‘to join to oneself’

Latin asserō ‘to join someone or something to oneself’

Latin assertiō

Middle English assercioun

English assertion

Today it means

noun The aggressive advancement of one's own opinions or wishes.

Sources

Sources: Wiktionary, “self-assertion”. By Wiktionary contributors, CC BY-SA 4.0, via kaikki.org (dump of Oct 3 2026); text adapted and restructured. Language periods are conventional ranges, not dates for this word. License.

Etymograph / self-assertion