sham.gar is the proper name of the son of Anath, presented as a deliverer and as a marker for troubled days.

The proper name identifies the son of Anath in two settings: his striking down of Philistines and deliverance of Israel, and the days in which highways ceased and travelers took crooked paths.

1. Name of the son of Anath · dominant

   In Judges 3:31, the proper noun identifies the man who struck down six hundred Philistines with an oxgoad and delivered Israel. In Judges 5:6, the same proper noun marks the days when highways ceased and travelers used crooked ways.

   Judges 3:31Judges 5:6

In the Anselm Project Bible: The APB presents the term as "Shamgar" in both verses, identifying him as "son of Anath".