Difference between Supererogatory and Extra

Supererogatory

Part of speech: adjective

Definition: pertaining to supererogation, or doing more than is required, especially with reference to good works in Roman Catholicism

Extra

Part of speech: noun

Definition: A run scored without the ball having hit the striker's bat - a wide, bye, leg bye or no ball; in Australia referred to as a sundryan extra edition of a newspaper, which is printed outside of the normal printing cycle

Part of speech: adverb

Definition: To an extraordinary degree.

Part of speech: adjective

Definition: Beyond what is due, usual, expected, or necessary; additional; supernumerary.Extraordinarily good; superior; as extra work, extra pay.

Example sentence: People should always have a good bottle of extra virgin olive oil, a packet of pasta, tinned tomatoes and a good cheese somewhere in their fridge.