Bridle - Vine's Expository Dictionary of New Testament Words
Bridle[ A-1,Noun,G5469, chalinos ]
a bridle," is used in James 3:3 (AV, "bits"), and Revelation 14:20. "The primitive bridle was simply a loop on the halter-cord passed round the lower jaw of the horse. Hence in Psalms 32:9 the meaning is bridle and halter" (Hastings, Bib. Dic.).
[ B-1,Verb,G5468, chalinagogeo ]
from chalinos and ago, "to lead," signifies "to lead by a bridle, to bridle, to hold in check, restrain;" it is used metaphorically of the tongue and of the body in James 1:26; James 3:2.