Assist
Munificent
Adj; (of a gift or sum of money) larger or more generous than is usual or necessary
Ancillary
Adj; providing support to the primary activities of an organization, institution, industry, or system.
Stalwart
Noun; a loyal, reliable,and hardworking supporter or participant in a team or organization
Mainstay
Noun; a person or thing on which something else is based or depends.
Proponent
Noun; a person who advocates a theory, proposal, or project
Sustenance
Noun; food and drink regarded as a source of strength or nourishment
Countenance
Noun; support
Espouse
Verb; adopt or support (a cause, belief or way of life)
Corroborate
Verb; confirm or give support to (a statement, theory, or finding).
Abet
Verb; encourage or assist someone in doing something wrong
Advocate
Verb; publicly recommend or support
Bolster
Verb; to support or strengthen