英语词源字典 - 在线词源网站

gingival (adj.)[gingival 词源字典]: 1660s, from Latin gingivae "the gums" (of unknown origin) + -al (1).[gingival etymology, gingival origin, 英语词源]
gingivitis (n.): 1874, from Latin gingivae "the gums" (of unknown origin) + -itis "inflammation."