Etymograph

English

subexpression

From sub- + expression.

A compound of sub- + expression

Proto-Indo-European *upó ‘up; from below’

Proto-Italic *supo ‘under’

Latin sub ‘under, beneath, below’

English sub-

Late Latin expressiō ‘a pressing out’

Middle French expression

English expression

Today it means

noun An expression that is a part of a larger expression.

Sources

Sources: Wiktionary, “subexpression”. 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 / subexpression