English
subconstraint
From sub- + constraint.
Formed from sub- + constraint
Proto-Indo-European *upó ‘up; from below’
Proto-Italic *supo ‘under’
Latin sub ‘under, beneath, below’
English sub-
Proto-Indo-European *strengʰ- ‘to twist’
…
Latin stringō ‘to draw, bind or tie tight’
Latin cōnstringō ‘to bind together with fetters, to fetter, bind’
Old French constreinte
Middle English constreynt
English constraint
Today it means
noun A subsidiary constraint
Sources
Sources: Wiktionary, “subconstraint”. 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 / subconstraint