underwrite
verb
[ ʌndəˈrʌɪt ]
• sign and accept liability under (an insurance policy), thus guaranteeing payment in case loss or damage occurs.
• "the policy, underwritten at Lloyd's, indemnifies trustees against loss arising from wrongful acts"
• (of a bank or other financial institution) pledge to buy all the unsold shares in (an issue of new shares).
• "the purchase is being paid for by a share issue, which has been underwritten"
• write (something) below something else, especially other written matter.
• "each subscriber should underwrite his reason for the place he allots his candidate"