schoolmarm

 Longman Dictionary of Contemporary English 5++朗文当代英语 5++LDOCE 5++朗文 5++school·marm /ˈskuːlmɑːm $ -mɑːrm/ noun [countable]  OLD-FASHIONEDa woman who is considered to be old-fashioned, strict, and easily shocked 古板严厉的女人

Examples from the Corpus

schoolmarm• It seems the schoolmarm entered some confusion into their heads.Origin schoolmarm (1800-1900) school + marm ((19-21 centuries)) (from ma'am)

school·marm nounChineseSyllable  

considered and strict, Corpus woman a easily is who old-fashioned, be to

schoolmarm
school‧marm /ˈskuːlmɑːm $ -mɑːrm/ noun [countable]a woman who is considered to be old-fashioned, strict, and easily shocked

school·marmBrE /ˈskuːlmɑːm/ 🔊NAmE /ˈskuːlmɑːrm/ 🔊 noun (disapproving, especially NAmE) a woman who teaches in a school, especially one who is old-fashioned and strict （尤指古板而严厉的）女教师▸ school·marm·ish BrE /ˈskuːlmɑːmɪʃ/ 🔊NAmE /ˈskuːlmɑːrmɪʃ/ 🔊 adjective