Boyd’s Bible Dictionary:
(villages of Jair). Villages in Gilead or Bashan (Num. 32:41; Deut. 3:14).
Concise Bible Dictionary:
This signifies “towns of Jair.” They were in “the country of Argob unto the coasts of Geshuri and Maachathi”; and were also called Bashan-havoth-jair (Deut. 3:14). They were small towns of Gilead (Num. 32:41). The same are called “towns of Jair” in Joshua 13:30; 1 Kings 4:13 and 1 Chron. 2:23. The name occurs again in Judges 10:4. See JAIR.
Jackson’s Dictionary of Scripture Proper Names:
villages of Jair (perhaps "producers of Jair,"the first part being feminine plural of "life," hence "lives," "living places," "producers."