महतत्व mahatatva

महान्, महा mahān, mahā (sanskrit)

(prefix) Great, illustrious.
Mighty, strong, big, large, ample, excessive, grievous.
Very, extremely, very much.

तत्व tatva (sanskrit)

Real state or nature; essence.
(Hinduism) The supreme spirit.
One of the five traditionally distinguished elementary substances (ether, air, fire, water, earth).
(chemistry) An element.
A basic principle; an axiom.
An element, aspect or factor (in a system).
(Vedanta philosophy) The real nature of the human soul (as identical with the all-pervading supreme spirit (false concept)).