stipulation (n.) Look up stipulation at Dictionary.com
1550s, "a commitment or activity to do something" (now obsolete), from Latin stipulationem (nominative stipulatio), noun of action from past participle stem of stipulari "exact a promise, engage, bargain," of uncertain origin. Traditionally said to be from Latin stipula "stalk, straw" (see stipule) in reference to some obscure symbolic act; this is rejected by most authorities, who, however, have not come up with a better guess. Meaning "act of specifying one of the terms of a contract or agreement" is recorded from 1750. Meaning "that which is stipulated or agreed upon" is from 1802.