LATIN DICTIONARYLexicon Latīnum
Allen & Greenough · Part First — Words and Forms › THIRD DECLENSION (CONSONANT AND i-STEMS)

§55. THIRD DECLENSION (CONSONANT AND i-STEMS)

The Nominative is always derived from the stem.

The variety in form in the Nominative is due to simple modi fications of the stem, of which the most important are—

  • Combination of final consonants: as of c (or g) and s to form x; dux, ducis, stem duc-; rēx, rēgis, stem rēg-.
  • Omission of a final consonant: as of a final nasal; leō, leōnis, stem leōn-; ōrātiō, ōrātiōnis, stem ōrātiōn-.
  • Omission of a final vowel: as of final i; calcar, calcāris, stem calcāri-.
  • Change of vowel in the final syllable: as of a toe; prīnceps (for -caps), prīncipis, stem prīncip- (for -cap-).
Consonant Stems

J. H. Allen and J. B. Greenough, New Latin Grammar (Boston: Ginn, 1903). Text provided under a CC BY-SA license by Perseus Digital Library, http://www.perseus.tufts.edu, with funding from the National Endowment for the Humanities.