Etymograph

English

subextensive

From sub- + extensive.

Formed from sub- + extensive

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

Proto-Italic *supo ‘under’

Latin sub ‘under, beneath, below’

English sub-

Proto-Indo-European *téndeti

…

Latin tendō ‘to stretch’

Latin extendō ‘to stretch or thrust out’

Latin extensus ‘stretched out’

Late Latin extensīvus ‘extensive’

English extensive

Today it means

adj Having a combined system entropy that is less than the sum of the entropies of the independent systems.

Sources

Sources: Wiktionary, “subextensive”. 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 / subextensive

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