Chrissy Thomas led the Terps with seven points and was part of a second-half seven-goal run.
Bosco transferred to the Terps from the Quakers and will play at her former home field on Wednesday.
Obtaining extra possessions and limiting penalties has helped the Terps this season.
Ahearn tied her career high of three goals and led the Terps with 10 draw controls.
The Terps have shown steady improvement following a slow start to the season.
Coach Cathy Reese envisions the No. 2 Terps running more of a selfless, balanced attack.
Abby Bosco and Marge Donovan are both using their extra year of eligibility for one last ride with the Terps.
Two of the three captains are first-time selections.
Last season's national semifinalists will play their games at SECU Stadium in 2023.
The Terps took home three major Big Ten awards following their conference regular season and tournament titles.