中性名词的特点:第三变格法中性名词单数主格的词尾：-en,-us（单数所有格词尾为-eris者），-e,-al,-ar,-a,-ur,-e,-t,如：stamen,staminis,n.(stamen,minis,n.)雄蕊genus,generis,n.(genus,neris,n.)属mare,maris,n.(mare,ris,n.)海calcar,calcaris,n.(calcar,ris,n.)距animal,animal,n.(animal,lis,n.)动物stigma,stigmatis,n.(stigma,atis,n.)柱头vegetabile,vegetabilis,n.(vegetabile,lis,n.)植物caput,capitis,n.(caput,pitis,n.)头ebur,eboris,n.(ebur,eboris,n.)象牙lac,lactis,n.(lac,ctis,n.)乳汁按单数夺格，复数主格、与格及复数所有格词尾不同,第三变格法中性名词又可分为甲式和乙式两种：乙式中性名词:凡单数主格词尾为-e,-al,-ar的中性名词均属乙式。变格特点是：单数夺格词尾为i，复数主格与受格词尾为-ia，复数所有格的词尾为-ium。例如上面的例词mare,calcar,animal,vegetabile等皆属乙式中性名词。乙式中性名词：单数主格词尾为e,al,ar单数夺格词尾为-i复数主格与复数受格词尾为-ia复数所有格词尾为-ium。变格示例:例一，rete,ret-is,n网词干：ret-格单数复数nomreteret-iaaccreteret-iagenret-isret-iumdatret-iret-ibusablret-iret-ibus例二，animal,animal-is.n动物。词干：animal-格单数复数nomanimalanimal-iaaccanimalanimal-iagenanimal-isanimal-ibusdatanimal-ianimal-iumablanimal-ianimal-ibus例三，calcar,calcar-is,n距词干：calcar-格单数复数nomcalcarcalcar-iaacccalcarcalcar-iagencalcar-iscalcar-iumdatcalcar-icalcar-ibusablcalcar-icalcar-ibus甲式：除了单数主格词尾为-e,-al,-ar者之外的中性名词均属甲式。变格特点是：除主格具有各式词尾外,其单数夺格词尾为-e，复数主格、复数受格词尾为-a，复数所有格词尾为-um。例如:stamen雄蕊genus属stigma柱头caput头状花序ebur象牙lac乳汁变格示例:例一，stamenminis,n雄蕊；词干：stamin-格单数复数nomstamenstamin-aaccstamenstamin-agenstamin-isstamin-umdatstamin-istamin-ibusablstamin-estamin-ibus例二，genus,neris,n属;词干：gener-格单数复数nomgenusgener-aaccgenusgener-agengener-isgener-umdatgener-igener-ibusablgener-egener-ibus例三，caput,capitis,n头；词干：capit-格单数复数nomcaputcapit-aacccaputcapit-agencapit-iscapit-umdatcapit-icapit-ibusablcapit-ecapit-ibus例四，stigma,stigmatis,n柱头词干：stigmit格单数复数nomstigmastigmat-aaccstigmastigmat-agenstigmat-isstigmat-umdatstigma-istigmat-ibusablstigmat-estigmat-ibus第三变格法名词的例外变格单数受格有特殊的词尾-im,单数夺格词尾为-i，这一类的名词是：来源于希腊文的名词及河流的名词：Tiber-is,is,f提伯里河；analys-is,is,f分析analys-im;analys-iacc.sing.abl.sing.Tiber-imTiber-iacc.sing.abl.sing.有几个单数主格以-is结尾的等音节名词，其单数受格与单数夺格亦有上述的词尾：rest-is,is,f.绳，索rest-im,