disemboguement

dis·em·bogue

 (dĭs′ĕm-bōg′)
intr.v. dis·em·bogued, dis·em·bogu·ing, dis·em·bogues
To flow out or empty, as water from a channel: "the river whose dirty waters disembogue into the harbor" (John Updike).

[From Spanish desembogue, mouth of a river, from desembocar, to flow out : des-, reversal (from Latin dis-; see dis-) + embocar, to put into the mouth (en-, in from Latin in-; see in-2 + boca, mouth, from Latin bucca, cheek).]

dis′em·bogue′ment n.