supporter

nouns

a person who backs a politician or a team etc.
"all their supporters came out for the game"; "they are friends of the library"
is derived from
is derived from
someone who supports or champions something
is derived from
is derived from
is derived from
a person who contributes to the fulfillment of a need or furtherance of an effort or purpose
"my invaluable assistant"; "they hired additional help to finish the work"
is derived from
a band (usually elastic) worn around the leg to hold up a stocking (or around the arm to hold up a sleeve)
is derived from
a support for the genitals worn by men engaging in strenuous exercise