Sat works so well since it hits Sanskrit too: The Sanskrit word sat (सत्) has many meanings, including:
Being, existence
Real, actual
True, good, right
Absolute reality
Fact
Brahman
That which is unchangeable
That which has no distortion
That which is beyond distinctions of time, space, and person
That which pervades the universe in all its constancy
Eternal existence and goodness
Auspicious action