graceyoudaoicibaDictYouDict[grace 词源字典]
grace: [12] Latin grātus meant ‘pleasing’. Its most obvious English descendants are grateful, gratify, gratuity, etc, but it is also responsible for grace (not to mention the even better disguised agree). Its derived noun grātia ‘pleasure, favour, thanks’ passed into English via Old French grace. Gracious [13] comes ultimately from Latin grātiōsus; grateful [15] is an English formation. (The apparently similar gracile ‘slender’ [17], incidentally, is not etymologically related; it comes from Latin gracilis ‘slender’.)
=> agree, grateful[grace etymology, grace origin, 英语词源]
GraceyoudaoicibaDictYouDict
fem. proper name, literally "favor, grace;" see grace (n.).
grace (n.)youdaoicibaDictYouDict
late 12c., "God's unmerited favor, love, or help," from Old French grace "pardon, divine grace, mercy; favor, thanks; elegance, virtue" (12c., Modern French grâce), from Latin gratia "favor, esteem, regard; pleasing quality, good will, gratitude" (source of Italian grazia, Spanish gracia; in Church use translating Greek kharisma), from gratus "pleasing, agreeable," from PIE *gwreto-, suffixed form of root *gwere- (3) "to favor" (cognates: Sanskrit grnati "sings, praises, announces," Lithuanian giriu "to praise, celebrate," Avestan gar- "to praise").

Sense of "virtue" is early 14c., that of "beauty of form or movement, pleasing quality" is mid-14c. In classical sense, "one of the three sister goddesses (Latin Gratiæ, Greek Kharites), bestowers of beauty and charm," it is first recorded in English 1579 in Spenser. In music, "an embellishment not essential to the melody or harmony," 1650s. As the name of the short prayer that is said before or after a meal (early 13c.; until 16c. usually graces) has a sense of "gratitude." As a title of honor, c. 1500.
grace (v.)youdaoicibaDictYouDict
c. 1200, "to thank," from Old French graciier "thank, give thanks to; praise," from grace "mercy, favor, thanks, virtue" (see grace (n.)). Meaning "to show favor" (mid-15c.) led to that of "to lend or add grace to something" (1580s, as in grace us with your presence), which is the root of the musical sense in grace notes (1650s). Related: Graced; gracing.