submerse

sub·merse  (sb-mûrs)

tr.v. sub·mersed, sub·mers·ing, sub·mers·es

To submerge.

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[Probably back-formation from submersion, act of submerging, from Late Latin submersi, submersin-, from Latin submersus, past participle of submergere, to submerge; see submerge.]

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sub·mersion (-mûrzhn, -shn) n.

Thesaurus

Verb	1.	submerse - sink below the surface; go under or as if under water submerge dive - plunge into water; "I was afraid to dive from the board into the pool" go under, go down, sink, settle - go under, "The raft sank and its occupants drowned"
	2.	submerse - put under water; "submerge your head completely" submerge immerse, plunge - thrust or throw into; "Immerse yourself in hot water"