disembogue
verb
[ ˌdɪsɪmˈbəʊɡ ]
• (of a river or stream) emerge or be discharged into the sea or a larger river.
• "that sea disembogues into the northern ocean"
Origin:
late 16th century: from Spanish desembocar, from des- (expressing reversal) + embocar ‘run into a creek or strait’ (based on boca ‘mouth’).