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# The Good Oil Word of the Day
- URL: https://goodoil.news/the-good-oil-word-of-the-day-313/
- Published: 2025-06-16T18:15:43.000Z
- Updated: 2025-06-16T18:15:42.000Z
- Author: David Theobald
- Tags: General, Word of the Day

The word for today is…

rationale (noun):

1: an explanation of controlling principles of opinion, belief, practice, or phenomena  
2: an underlying reason : basis

Source : [Merriam -Webster](https://www.merriam-webster.com/dictionary/rationale?ref=goodoil.news)

Etymology : Rationale comes from Latin ratio, meaning "reason," and rationalis, "endowed with reason." Ratio is reasonably familiar as an English word for the relationship (in number, quantity, or degree) between things.

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