(usu + with) equal or approximately equal in measure or extent; coextensive
(often + to/with) corresponding in size, extent, amount, or degree; proportionate
He was given a job commensurate with his abilities
commensurately adv
commensuration /-ʹraysh(ə)n/ noun
[late Latin commensuratus, from com- + mensuratus, past part. of mensurare to measure, from Latin mensura: see measure1]