A depends on B, is A dependant, or is B dependant?
I'm trying to find a word that is the counterpart to "dependent", i.e. refers to the one who the dependent relies upon. A word that meets a definition along the lines of the following:
One who has dependents, but is not necessarily a dependent himself.
One upon whom others depend.
It came about in a discussion with some coworkers and none of us could find an answer and now it's really bothering me.
I tried searching for it on Google, but I could only find results relating to income tax filing status and similar topics.