Etymograph

English

subdirect

From sub- + direct.

Formed from sub- + direct

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

Proto-Italic *supo ‘under’

Latin sub ‘under, beneath, below’

English sub-

Latin regō ‘to make straight, rule’

Latin dīrigō ‘to straighten, direct’

Latin dīrēctus ‘laid straight’

English direct

Today it means

adj Describing a subalgebra of a direct product

Sources

Sources: Wiktionary, “subdirect”. 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 / subdirect