3 occurrences in 3 dictionaries
Reference: Jorkoam
Fausets
A place in Judah, near Hebron, of which Raham was prince (1Ch 2:44; Jarchi). Else a person sprung from Caleb son of Hezron, through Hebron.
See Verses Found in Dictionary
Smith
Jor'ko-am
(paleness of the people), either a descendant of Caleb the son of Hezron, or the name of a place in the tribe of Judah.