to present, esp. deliberately, the appearance of being; profess or claim, often falsely: a document purporting to be official.
2.
to convey to the mind as the meaning or thing intended; express or imply.
–noun
3.
the meaning, import, or sense: the main purport of your letter.
4.
purpose; intention; object: the main purport of their visit to France.
Origin: 1375–1425; (v.) late ME purporten < AF purporter to convey, equiv. to pur-pro-1+ porter to carry (< L portāre); (n.) late ME < AF, deriv. of the v.
Related forms:
pur⋅port⋅less, adjective
Synonyms: 2.mean, intend, signify. 3.implication, drift, trend, gist. See meaning.
To have or present the often false appearance of being or intending; profess: selfish behavior that purports to be altruistic.
To have the intention of doing; purpose.
n.
(pûr'pôrt', -pōrt')
Meaning presented, intended, or implied; import. See Synonyms at substance.
Intention; purpose.
[Middle English purporten, to set forth, from Anglo-Norman purporter : pur-, forth (from Latin prō-; see pro-1) + porter, to carry (from Latin portāre; see per-2 in Indo-European roots).]
[v. per-pawrt, -pohrt, pur-pawrt, -pohrt; n. pur-pawrt, -pohrt] 
pɔrt