Welcome to OnMatrimony.com.
Let,
ON means the on state in Boolean Algebra/ Digital Logic/ Switch Logic.
Matrimony means the state of being married.
Then,
On Matrimony, is suggestion/ advice to on this state of Matrimony in your life so that it will bring enormous joy and pleasure.
So, be our part when you essentially need this awesome state, which is colorful and joyful part of life. :)!