SUPERPOSE

superimpose, superpose, lay over

(verb) place on top of; “can you superimpose the two images?”

superpose

(verb) place (one geometric figure) upon another so that their perimeters coincide

Source: WordNet® 3.1

Etymology

Verb

superpose (third-person singular simple present superposes, present participle superposing, simple past and past participle superposed)

(transitive) To place (one thing) on top of another.

(transitive, mathematics) To place (one geometric figure) on top of another in such a way that all common parts coincide.

Source: Wiktionary

Su`per*pose", v. t. [imp. & p. p. Superposed; p. pr. & vb. n. Superposing.] Etym: [F. superposer. See Super-, and Pose.]

1. To lay upon, as one kind of rock on another.

2. (Geom.)

Definition: To lay (a figure) upon another in such a manner that all the parts of the one coincide with the parts of the other; as, to superpose one plane figure on another.

Source: Webster’s Unabridged Dictionary 1913 Edition