Etymograph

English

semidecision

From semi- + decision.

Formed from semi- + decision

Proto-Indo-European *sem- ‘one’

Proto-Indo-European *sēmi ‘half’

English semi-

Proto-Indo-European *kh₂eyd- ‘to cut’

…

Proto-Italic *kaidō ‘to cut’

Latin caedō ‘to cut’

Latin dēcīdō ‘to decide’

Latin dēcīsiō ‘settlement’

English decision

Today it means

noun A technique in which the necessary conditions for a state are identified and then a proof that these conditions cannot be satisfied is produced.

Sources

Sources: Wiktionary, “semidecision”. 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 / semidecision