Here is a marvelous website --
It welcomes the visitor thusly:
Welcome to the positive lexicography, an evolving index of 'untranslatable' words related to wellbeing from across the world's languages.
I hardly know which word to pick.
Let us start with this:
Nam jai (น ้ำใจ) (Thai, n.): lit. 'water from the heart', selfless generosity and kindness
We shall try.
Meirl: how my summer’s going
3 days ago