The Collaborative International Dictionary of English v.0.48:
Interpose \In`ter*pose"\, v. t. [imp. & p. p. Interposed; p.
pr. & vb. n. Interposing.] [F. interposer. See Inter-,
and Pose, v. t.]
1. To place between; as, to interpose a screen between the
eye and the light.
Make enemies of nations. --Cowper.
2. To thrust; to intrude; to put between, either for aid or
What watchful cares do interpose themselves
Betwixt your eyes and night? --Shak.
The common Father of mankind seasonably interposed
his hand, and rescues miserable man. --Woodward.
3. To introduce or inject between the parts of a conversation
or argument. --Milton.