Bible dictionaries
Demas
What Bible dictionaries say about “Demas”, one article after the other.
Easton’s Bible Dictionary & Webster’s 1828 Dictionary
Demas - (Easton's Bible Dictionary)
A companion and fellow-labourer of Paul during his first imprisonment at Rome (Philemon 1:24; Col. 4:14). It appears, however, that the love of the world afterwards mastered him, and he deserted the apostle (2 Tim. 4:10).
Matthew George Easton, Easton’s Bible Dictionary; Noah Webster, American Dictionary of the English Language (1828)
The article in Easton + Webster 1828International Standard Bible Encyclopedia (ISBE 1915)
de'-mas (Demas, "popular"): According to Col 4:14; 2Ti 4:10; Phm 1:24, one who was for a time a "fellow-worker" with Paul at Rome (Col, Philem), but at last, "having loved this present world," forsook the apostle and betook himself to Thessalonica (2 Tim). No other particulars are given concerning him. See APOSTASY; DEMETRIUS.
International Standard Bible Encyclopedia — James Orr, general editor and contributors; CrossWire SWORD module ISBE 2.2
The article in ISBE 1915Smith’s Bible Dictionary
William Smith; revised by F. N. Peloubet and M. A. Peloubet; CrossWire SWORD module Smith 1.3
The article in Smith