Lewis & Short

Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.

portĭo, ōnis (abl. sing. portioni, Inscr. Lat. 206, 38), f. [kindr. with pars and πόρω, to share, impart], a share, part, portion (post-Aug., except in the phrase pro portione; v. in foll. II.).

  1. I. Lit.: Luna aequā portione divisa, Plin. 2, 9, 6, § 42: ex his portio in Italiā consedit, portio in Illyricos sinus penetravit, Just. 24, 4, 2: hereditatis, id. 36, 2, 5; cf. id. 21, 1, 2: quamvis quota portio faecis Achaei, Juv. 3, 61: mox in proflatum additur tertia portio aeris collectanei, Plin. 34, 9, 20, § 97: pari portione inter se mixta pix, cera, alumen, etc., Cels. 4, 24; cf.: glandis cortex et nitrum paribus portionibus, id. 5, 18, 4: nil natura portionibus parit, by parts, piecemeal, Plin. 17, 22, 35, § 177: portio brevissima vitae, Juv. 9, 127: pars A carnaniae, quam in portionem belli acceperat, as his share for his services in the war, Just. 28, 1, 1: vocare aliquem in portionem muneris, id. 5, 2, 9: magna mortalium portio, Plin. 8, 28, 42, § 102.
  2. II. Transf., a relation to any thing, proportion, i. q. proportio.
    1. A. In gen., adverb.
      1. 1. prō portiōne (class.; not in Cæs.), in proportion, proportionally, relatively: pro portione ea omnia facito, Cato, R. R. 106 fin.: pro portione ad majorem fundum vel minorem addere, Varr. R. R. 1, 18, 3: Mamertinis pro portione imperaretur, Cic. Verr. 2, 5, 21, § 55; id. Fl. 14, 32; Liv. 34, 50: oportet ut aedibus ac templis vestibula et aditus, sic causis principia pro portione rerum praeponere, in relation, in proportion, Cic. de Or. 2, 79, 320; so, pro ratā portione, Plin. 11, 15, 15, § 40: pro suā scilicet portione, Quint. 10, 7, 28; Censor. de Die Nat. 3.
      2. 2. portĭōne (post-Aug.): cerebrum omnia habent animalia, quae sanguinem: sed homo portione maximum, proportionally, Plin. 11, 37, 49, § 133; so id. 11, 37, 70, § 183; 11, 2, 1, § 2; cf.: hac portione mediocribus agris semina praebenda, Col. 2, 9, 1: quādam portione, Quint. 6, 1, 26: eādem portione, id. 11, 3, 139.
      3. 3. ad portiō-nem (rare and only post Aug.), Plin. 14, 21, 27, § 133; 24, 8, 30, § 46: ad suam quisque portionem, id. 36, 16, 25, § 9: supra portionem, Col. 7, 1, 2.
    2. B. Subst.: eadem ad decem homines servabitur portio, the same proportion, Curt. 7, 11, 12: portionem servare, Col. 11, 2, 87; cf.: proportione servatā, id. 8, 11, 6.