tn מִסְתּוֹלֵל (mistolel) is a Hitpael participle, from a root that means “raise up, obstruct.” So in the Hitpael it means to “raise oneself up,” “elevate oneself,” or “be an obstructionist.” See W. C. Kaiser, Jr., “Exodus,” EBC 2:363; U. Cassuto, Exodus, 116.

tn The infinitive construct with lamed here is epexegetical; it explains how Pharaoh has exalted himself—“by not releasing the people.”