English

abrachiocephaly

From a- + brachio- + -cephaly.

Formed from a- + brachio- + -cephaly

Proto-Indo-European *uds- ‘up, out’

Proto-Germanic *uz- ‘out-’

Proto-West Germanic *uʀ- ‘up, out, over’

English a-

Proto-Indo-European *mreǵʰ- ‘short’

…

Proto-Hellenic *brəkʰús

Ancient Greek βρᾰχῠ́ς ‘short, brief’

Ancient Greek βρᾰχῑ́ων ‘upper arm’

Latin bracchium ‘forearm’

Today it means

noun congenital absence of arms and head

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

Etymograph / abrachiocephaly