portio

portiō ōnis, f

2 PAR-, a share, part, portion, lot : brevissima vitae, Iu.— A proportion, ratio : eadem ad decem homines servabitur portio, the same proportion , Cu.—In the phrase, pro portione, in proportion, proportionally, relatively : adice nunc pro portione, quot, etc., L.: causis principia pro portione rerum praeponere.