There were eight ties and nine lead changes before the Greyhounds (18-9, 10-5 Metro Atlantic Athletic Conference) closed the first half with a 7-1 spurt to lead 37-32 at intermission.
The Golden Griffins (16-10, 9-6), who defeated Loyola 91-79 on Jan. 31, trailed by as many as 10 in the second half and could get no closer than three until Billy Baron's 3-pointer with 48 seconds remaining made it 66-64.
Cormier missed a layup and Baron a 3-pointer, then Anthony Winbush hit two free throws with 5 seconds left. Baron missed another 3-pointer with 2 seconds showing.
Julius Brooks added 13 points on perfect shooting for the Greyhounds.
Maryland point guard Melo Trimble, considered a lock to leave the program before struggling in the second half last season, has withdrawn from the NBA draft and will return for his junior season.
Louisville's Chinanu Onuaku, who recently underwent a medical procedure to correct a heart rhythm issue detected during the combine, will keep his name in the NBA draft pool.
Andrew White III will return to the Nebraska men's basketball team next season after removing his name from the NBA draft.