English
lanternfish
From lantern + fish.
Ancient Greek λᾰ́μπω ‘to shine, be bright, give light’
Ancient Greek λαμπτήρ ‘torch’
Latin lanterna
Old French lanterne
Middle English lanterne ‘a lantern or lamp’
English lantern
Proto-Indo-European *piskós
Proto-Germanic *fiskaz
Proto-West Germanic *fisk
Old English fisċ
Middle English fisch ‘an animal that inhabits the water or the meat…’
English fish
Today it means
noun Any of small, deep sea fish of the large family Myctophidae, named after their conspicuous use of bioluminescence.
Language periods are conventional ranges, not dates for this word.
Etymograph / lanternfish