English

semidisk

From semi- + disk.

Formed from semi- + disk

Proto-Indo-European *sem- ‘one’

Proto-Indo-European *sēmi ‘half’

English semi-

Ancient Greek δικεῖν ‘to cast’

Ancient Greek δίσκος ‘a circular plate suited for hurling’

English disk

Today it means

noun A half disk.

Language periods are conventional ranges, not dates for this word.

Etymograph / semidisk