What are gergithes?

Some articles on gergithes:

Gorgythion - Name and Description
... John Pairman Brown has suggested that Gorgythion's name "surely echoes the Gergithes the 'Gergithes remnants of the Teucrians' are projected back into the heroic age as individual antagonists" ... According to Herodotus, the Gergithes were "the remnants of the ancient Teucrians" (that is, of the ancient Trojans) ...