tarre
To incite; to provoke; to spur on.
obsolete
Nay, it perchance will sparkle in your eyes, / And like a dog that is compelled to fight, / Snatch at his master that doth tarre him on.
Where it comes from
From Middle English tarien, taryen (“to vex, harass, cause to hesitate, delay”), from Old English tirġan, terġan, tirian (“to worry, exasperate”).
Adapted from the Wiktionary entry tarre (CC BY-SA 4.0).