The noun frugality means the quality of being economical with money or food, and avoiding waste, lavishness or extravagance.

Synonyms are thriftiness, economizing, moderation, or prudence.

The word origins from Middle French frugalité (1530), meaning “economy, thriftiness”, and Latin frugalitatem. Over time the sense of the word in Latin developed from useful,profitable to economical

Their frugality and temperance in living standard and how they handle payment of debt is remarkable.

We must practise the strictest frugality and economy to survive this crisis.

 Their frugality and temperance in food and drink are remarkable.