Etymograph

English

subfilter

From sub- + filter.

Formed from sub- + filter

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

Proto-Italic *supo ‘under’

Latin sub ‘under, beneath, below’

English sub-

Proto-Indo-European *pel-

Proto-Germanic *fellą ‘skin, hide’

Proto-West Germanic *felt

Medieval Latin filtrum ‘felt’

Middle English filtre

English filter

Today it means

noun A subsidiary filter.

Sources

Sources: Wiktionary, “subfilter”. 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 / subfilter

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