Maintainor

• (n.) One who, not being interested, maintains a cause depending between others, by furnishing money, etc., to either party.
Found on http://thinkexist.com/dictionary/meaning/maintainor/

Maintainor

Main·tain'or noun [ Old French mainteneor , French mainteneur .] (Crim. Law) One who, not being interested, maintains a cause depending between others, by furnishing money, etc., to either party. Bouvier. Wharton.
Found on http://www.encyclo.co.uk/webster/M/9
No exact match found