Etymograph

English

subfactor

From sub- + factor.

Formed from sub- + factor

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

Proto-Italic *supo ‘under’

Latin sub ‘under, beneath, below’

English sub-

Proto-Indo-European *dʰeh₁k-

…

Latin faciō ‘to do, make’

Latin factor ‘doer, maker’

Anglo-Norman factour

Middle English factour

English factor

Today it means

noun A particular form of subalgebra

Sources

Sources: Wiktionary, “subfactor”. 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 / subfactor

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