- (adv.) Previously; before; formerly; heretofore.
- (adv.) First.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). erst. Retrieved September 21, 2026, from http://smartdefine.org/erst/definitions/2004639 |
| Chicago | Webster's. 2011. "erst" http://smartdefine.org/erst/definitions/2004639 (accessed September 21, 2026). |
| Harvard | Webster's 2011, erst, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/erst/definitions/2004639>. |
| MLA | Webster's. "erst" 27 May 2011. Web. 21 September 2026. <http://smartdefine.org/erst/definitions/2004639> |