[*] 61. In Masculine and Feminine nouns with liquid and nasal stems the Nominative is the same as the stem. Exceptions are the following:—
- Stems in ōn- drop n in the nominative: as in legiō , stem legiōn-.
- Stems in din- and gin- drop n and keep an original ō in the nominative: as in virgō , stem virgin-.1
- Stems in in- (not din- or gin-) retain n and have e instead ofi in the nominative: as in cornicen, stem cornicin-.2
- Stems in tr- have -ter in the nominative: as, pater , stem patr-.3