goody (n.1)youdaoicibaDictYouDict[goody 词源字典]
also goodie, "something tasty," 1745, from good (adj.) + -y (2). Adjectival use for "sentimentally proper" is by 1830 (especially in reduplicated form goody-goody, 1865). As an exclamation of pleasure, by 1796.[goody etymology, goody origin, 英语词源]
sentimental (adj.)youdaoicibaDictYouDict
1749, "pertaining to or characterized by sentiment," from sentiment + -al (1). At first without pejorative connotations; meaning "having too much sentiment, apt to be swayed by prejudice" had emerged by 1793 (implied in sentimentalist). Related: Sentimentally.
spoon (v.)youdaoicibaDictYouDict
1715, "to dish out with a spoon," from spoon (n.). The meaning "court, flirt sentimentally" is first recorded 1831, a back-formation from spoony (adj.) "soft, silly, weak-minded, foolishly sentimental." Related: Spooned; spooning.
unsentimental (adj.)youdaoicibaDictYouDict
1752, from un- (1) "not" + sentimental (adj.). Related: Unsentimentally.