en-kwir': This is an Old English word now obsolescent. It is common in the King James Version. In the American Standard Revised Version it is nearly always replaced by the more modern "inquire," a few times by "seek" and "ask," once by "salute" (1Ch 18:10). With this one exception in the Old Testament the change does not affect the meaning. In Ac 23:15, "enquire something more perfectly" is substituted by "judge more exactly." In Mt 10:11, "search out" replaces it. In Mt 2:7,16, "learned exactly" replaces "inquired diligently."
See INQUIRE.