Demurely.
Demureness.
Sedate; modest; also, prim; coy.
He had left a demure Quakeress with Peggy, and returned to find this beautiful, radiant girl. – Peggy Owen and Liberty by Lucy Foster Madison
Demure in it she looked, like an agreeable reminiscence, alive, and a little up- to- date, of the women of long ago. – The Beetle A Mystery by Richard Marsh