English

interbrachial

From inter- + brachial.

Proto-Indo-European *h₁én ‘in’

Proto-Indo-European *h₁entér ‘between’

Proto-Italic *n̥ter ‘between’

Latin inter ‘between’

Proto-Indo-European *mreǵʰ- ‘short’

…

Ancient Greek βρᾰχῠ́ς ‘short, brief’

Ancient Greek βρᾰχῑ́ων ‘upper arm’

Latin bracchium ‘arm’

Latin bracchialis

Today it means

adj Between the arms.

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

Etymograph / interbrachial