What is the word for truth and its meaning in Koine Greek?

There is absolutely no relation to λίθος/lithos=stone. Notice the η vs ι.

the word is composed of the privative prefix α- and λήθη/lethe which means “forgetfulness/stupor”. So the αλήθεια means “without fault/stupor/hiding”

The word you are looking for is:

My parents force me (15yo atheist) to go to church, and there’s this thing called Small Sundays where we discuss the Bible in groups, there are questions asked about the Bible. What am I supposed to do when they ask?

a couple of points:

The Greek word for thief/robber/pirate is ληστής/listis which is derived from λανθάνω as well

Nuda Veritas is the derivation of the term “Naked Truth”.

Why do almost all the girls on Quora look beautiful?

A similarly derived word is ληθαργία/lethargia=toiling under forgetfulness/stupor….lethargy.

as a result Alitheia, the Goddess of Truth, was always depicted as a naked, unassuming and plain looking woman. The Latin equivalent was nuda Veritas. Truth has nothing to hide and didn’t need all the adornments of the other gods.

The root verb is λανθάνω/lanthano=to escape notice/to make one forget/to lay hidden

Why can't my adopted sister accept she is not part of my family because she isn't related? Why can't she stop calling my parents mum and dad?

The word has remained the same into Modern Greek

αλὴθεια / Alithea.

What is the word for truth and its meaning in Koine Greek?

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