Underwrite
Part of speech: verb
Definition: To write (something) below something else. To subscribe (a document, policy etc.) with one's name. To sign; to put one's name to. Specifically, to assume financial responsibility for something, and guarantee it against failure. To act as an underwriter. To support, lend support to, guarantee the basis of.
Subvention
Part of speech: noun
Definition: A subsidy; provision of financial or other support.