To Blow the __, a Strong Gust Submerging a Ship

This page is the CodyCross answer for the clue below from Prehistory, Group 1244, Puzzle 2 (Homo Sapiens).

Question is: To Blow the __, a Strong Gust Submerging a Ship

and the answer is: MANDOWN

Word Meaning:

MAN DOWN — (transitive, idiomatic) To lose courage or cause to lose courage.

Definitions from Wiktionary.