for the sake of something Definition

sake¹
noun

1. Benefit or advantage; behalf; account.

Example: for my sake
Thesaurus: welfare, benefit, account, behalf, interest, advantage, welfare, well-being.
2. Purpose; object or aim.

Thesaurus: end, objective, result, consequence, aim, purpose, score, motive, principle, reason.

Idiom: for God's sake (for heaven's etc sake)

Exclamations used in annoyance or when pleading, eg for forgiveness.

Idiom: for old time's sake

Because of what happened or because it was done in the past.
Example: We should go to that bar for old time's sake

Idiom: for the sake of something

For the purpose of or in order to achieve or assure it.
Example: You should take these exams for the sake of your future

Etymology: Anglo-Saxon sacu lawsuit.