English

subdelta

From sub- + delta.

Formed from sub- + delta

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

Proto-Italic *supo ‘under’

Latin sub ‘under, beneath, below’

English sub-

Proto-Semitic *dalt- ‘door’

Ancient Greek δέλτα ‘delta, the name for the fourth letter Δ (D),…’

English delta

Today it means

noun A river delta forming part of another.

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

Etymograph / subdelta