(historical) part of the tithe (dîme) paid by the higher clergy (haut clergé) to the members of the lower clergy (bas clergé) for their sustenance; allowances of the lower clergy / (figuratively) tithe, trifling amount (the smallest share, the meanest share, the bare minimum - and possibly even less than that: barely enough)

(transitive) to minimize, to cut, to reduce to practically nothing

plural of portion

inflection of porter:
/ inflection of porter: