Wiktionary
vb. (context transitive idiomatic English) To support or sustain someone, especially financially, for a limited period.
WordNet
v. suffice for a period between two points; "This money will keep us going for another year" [syn: bridge over, keep going]
Usage examples of "tide over".
Three times they made the attempt, to abandon it hastily as wind and wave rendered the ship unmanageable, but at the fourth try it became possible, with the shortening of the waves in their advance up-Channel and the turn of the tide over on the French coast.
Three times they made the attempt, to abandon it hastily as wind and wave rendered the ship unmanageable, but at the fourth try it became possible, with the shortening of the waves in their advance upChannel and the turn of the tide over on the French coast.