A-hĕad', adv.
(a-hĕd'), adv. [Prefix a and head.]
Sense 1. Farther forward; farther in front or in advance; onward. “The island bore but a little ahead of us.” Fielding.
Sense 2. Headlong; without restraint; precipitantly. They suffer them [children] to run ahead. L'Estrange.