constitute {verb} Etymology : [..] con- intensive + statuĕre to set up, place: [...]
6. To make (a person or thing) something; to establish or set up as. (With obj. and compl.) Cf. 2.
8. To make up, form, compose; to be the elements or material of which the thing spoken of consists.
compose {verb} Etymology : [...] com- together + poser to place, put down [...]
I. To put together, make up.
Abbreviate any 'Inanimate Subject(s)' to IS, and 'direct object' as DO. The OED links above comprise example sentences of the following syntax:
- IS composes/constitutes DO.
I paraphrased 'constitute' and 'compose' in terms of their Latin etymons. Then 1 can be paraphrased as:
2. IS 'sets up/places/puts [down] + together' DO.
But 2 doesn't make sense, as being inanimate, IS can't 'set up/place/put' a DO. 2 makes sense only if 2's verbs are interpreted causatively, as in 3:
3. IS causes to be 'placed, put down + [together]' DO.
So does 3 prove that com- is a causative prefix?