phalanx

the word "phalanx" entered english in the 16th century via latin from the greek "phalanx" (genitive "phalangos"), meaning a line or array of battle, or a log. the greek term likely derives from a pre-greek mediterranean substrate language, indicating its ancient and possibly non-indo-european origins. in greek military context, it specifically referred to the tight, rectangular infantry formation of heavily armed soldiers, a meaning directly preserved in english. the anatomical sense, referring to the bones of the fingers and toes, was a later application by medical writers, drawing an analogy between the linear arrangement of the bones and the soldiers in a battle line.

Structure: phalanx (unsegmentable) the entire word "phalanx" is a simplex unit borrowed from greek. it does not contain separable morphemes in its modern english spelling.