the.com/tenet

A belief you'd defend at a dinner party even after dessert.

means A core principle or belief that a person or group holds to be true and treats as a foundation for other beliefs or actions.

from From Latin 'tenet,' meaning 'he/she/it holds' — the third-person singular of 'tenere,' to hold. Latin textbooks and treatises used it to introduce a position the author 'holds' to be true, and English borrowed the word whole, letting a verb form freeze into a noun for the thing held onto.

palindrome
Reads the same backward, like the movie it inspired
not dogma
Dogma demands obedience, a tenet just asks agreement
etymology
From Latin tenere, to hold, as in holding firm
group term
Collections of tenets form creeds, doctrines, or constitutions
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