estimate (n.)youdaoicibaDictYouDict[estimate 词源字典]
1560s, "valuation," from Latin aestimatus "determine the value of," figuratively "to value, esteem," verbal noun from aestimare (see esteem (v.)). Earlier in sense "power of the mind" (mid-15c.). Meaning "approximate judgment" is from 1580s. As a builder's statement of projected costs, from 1796.[estimate etymology, estimate origin, 英语词源]
estimate (v.)youdaoicibaDictYouDict
1530s, "appraise the worth of," from Latin aestimatus, past participle of aestimare "to value, appraise" (see esteem (v.)). Meaning "form an approximate notion" is from 1660s. Related: Estimated; estimates; estimating.