definiens: of or by any Person shall mean any obligation, contingent or otherwise, of such Personguaranteeing or having the economic effect of guaranteeing any Indebtedness or other obligation of any otherPerson ( the ) in any manner, whether directly or indirectly, and including any obligation of suchPerson, direct or indirect, ( a ) to purchase or pay ( or advance or supply funds for the purchase or payment of)such Indebtedness or other obligation or to purchase ( or to advance or supply funds for the purchase of ) anysecurity for the payment of such Indebtedness or other obligation, ( b ) to purchase or lease property, securitiesor services for the purpose of assuring the owner of such Indebtedness or other obligation of the payment ofsuch Indebtedness or other obligation or ( c ) to maintain working capital, equity capital or any other financialstatement condition or liquidity of the primary obligor so as to enable the primary obligor to pay suchIndebtedness or other obligation ; provided, however, that the term shall not include endorsementsfor collection or deposit in the ordinary course of business