erst

erst is an   Adjective

Definition:

[1] First. Chaucer.

[2] Previously; before; formerly; heretofore. Chaucer. Tityrus, with whose style he had erst disclaimed all ambition to match his pastoral pipe. A. W. Ward. At erst, at first; at the beginning. -- Now at erst, at this present time. Chaucer.

Synonyms: