Etymograph

English

subconcave

From sub- + concave.

Formed from sub- + concave

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

Proto-Italic *supo ‘under’

Latin sub ‘under, beneath, below’

English sub-

Proto-Italic *kawos

Latin cavus

Latin concavus ‘concave, hollow’

Old French concave

Middle English concave

English concave

Today it means

adj Slightly concave.

Sources

Sources: Wiktionary, “subconcave”. 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 / subconcave