Where does “phalangeal” come from?

phalangeal (English) comes from Latin phalanx, from Ancient Greek φάλαγξ, from Proto-Indo-European bʰelǵ- — to balk, beam.

phalangeal (English): Relating to a phalanx; Relating to a phalange; A...

Definitions

Step	Language	Word	Meaning
1	Latin	phalanx	phalanx, battalion
2	Ancient Greek	φάλαγξ	line of battle, battle-array; ranks of an army;...
3	Proto-Indo-European	bʰelǵ-	to balk, beam