To tide over is to help somebody through a hard stretch until things improve. Tide over until payday.
It is temporary by definition, which is what separates it from support. A loan to tide over a bad month becomes a problem when the month repeats.
1phrasetide overTo help somebody through a hard stretch until things improve.
“Fifty pounds would tide over the whole family until Friday.”
tide over is a phrase.
Practised in Phrasal Verbs