The crowd of 17,950 lost much of its enthusiasm during a stretch in which the Terrapins went scoreless for nearly 5 minutes in the second half while Syracuse upped its lead to double figures.
Ennis, a 6-foot-2 freshman, made a 3-pointer and two baskets in an 8-2 spree that put Syracuse up 42-30. After the Terps closed to 44-37, Michael Gbinije popped a 3, Faust botched a dunk on the other end and Ennis hit a jumper for a 49-37 lead.
It barely held up.
Syracuse shot 50 percent and Ennis drilled a 3-pointer just before the buzzer for a 32-24 halftime advantage.
After a steal by Dez Wells set up a dunk by Charles Mitchell to put Maryland ahead 5-3, the Orange got four points apiece from Fair and Grant in a 15-3 run that made it 18-8. At that point, Syracuse was 8 for 12 from the field and the Terrapins were 3 for 13.
A 3-pointer by Allen capped a 9-2 spurt that got Maryland to 20-17 before the Orange rattled off three straight baskets. The Terrapins were still in it, though, despite missing 12 of 17 shots and committing nine turnovers.
With 4:55 left, Fair picked up his third foul and hit the bench for the remainder of the half after scoring 10 points on 5-for-7 shooting.