Merriam-Webster Collegiate Dictionary - subvention

 noun  Etymology: Middle English subvencion, from Middle French & Late Latin; Middle French subvencio?n, from Late Latin ~-, subventio assistance, from Latin subvenire to come up, come to the rescue, from sub- up + venire to come — more at sub-, come  Date: 15th century the provision of assistance or financial support: as  a. endowment  b. a subsidy from a government or foundation  • ~ary adjective