Beg, Beggar, Beggarly - Vine's Expository Dictionary of New Testament Words
Beg, Beggar, Beggarly[ A-1,Verb,G1871, epaiteo ]
a strengthened form of aiteo, is used in Luke 16:3.
[ A-2,Verb,G4319, prosaiteo ]
lit., to ask besides" (pros, "towards," used intensively, and aiteo), "to ask earnestly, to importune, continue asking," is said of the blind beggar in John 9:8. In Mark 10:46; Luke 18:35 certain mss. have this verb; the most authentic have prosaites, "a beggar," a word used in John 9:8, as well as the verb (See the RV).
Note: "Begged" in Matthew 27:58; Luke 23:52, RV, "asked for," translates the verb aiteo; See ASK.
[ B-1,Adjective,G4434, ptochos ]
an adjective describing "one who crouches and cowers," is used as a noun, "a beggar" (from ptosso, "to cower down or hide oneself for fear"), Luke 14:13, Luke 14:21 ("poor"); Luke 16:20, Luke 16:22; as an adjective "beggarly" in Galatians 4:9, i.e., poverty-stricken, powerless to enrich, metaphorically descriptive of the religion of the Jews.
While prosaites is descriptive of a "beggar," and stresses his "begging," ptochos stresses his poverty-stricken condition. See POOR.