English

embryoblast

From embryo- + -blast.

Ancient Greek ἔμβρυον ‘fetus’

Medieval Latin embryō

Proto-Indo-European *bʰleh₁-

…

Proto-Germanic *blēstuz ‘blowing, blast’

Proto-West Germanic *blāstu ‘blowing’

Old English blǣst ‘blowing, blast’

Middle English blast ‘a blast’

English blast

Today it means

noun A mass of cells at the embryonic pole of the blastocyst, that develops to form the embryo

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

Etymograph / embryoblast