Etymograph

English

hadalpelagic

From hadal + pelagic.

A compound of hadal + pelagic

French Hadès

French hadal

English hadal

Ancient Greek πέλαγος ‘sea’

Ancient Greek πελαγικός

Latin pelagicus

English pelagic

Today it means

adj Relating to the oceans at depths greater than 6,000 meters in the suboceanic trenches.

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

Etymograph / hadalpelagic