Exact historical dictionary sense
Portion in Webster's 1913 dictionary
The 1913 record labels portion as noun. Its source-bounded etymology and selected historical definition appear below.
[F., from L. portio, akin to pars, partis, a part. See Part, n.]
Cross-verified historical senseIn Webster's Revised Unabridged Dictionary (1913), "portion" is labeled noun. Its etymology is recorded as: "[F., from L. portio, akin to pars, partis, a part. See Part, n.]" The selected historical definition says: "That which is divided off or separated, as a part from a whole; a separated part of anything."