English word olenimorph comes from English -morph (Morpheme. Shape, form, structure.), English olenid ((zoology) Any member of the trilobite family Olenidae.)

Detailed word origin of olenimorph

Dictionary entry	Language	Definition
-morph	English (eng)	Morpheme. Shape, form, structure.
olenid	English (eng)	(zoology) Any member of the trilobite family Olenidae.
olenimorph	English (eng)	(paleontology) Having the morphology associated with olenid trilobites. (paleontology) A trilobite with such morphology.

Words with the same origin as olenimorph