Erst

• (adv.) Previously; before; formerly; heretofore. • (adv.) First.
Found on http://thinkexist.com/dictionary/meaning/erst/

Erst

Erst (ẽrst) adverb [ Orig. superlative of ere ; Anglo-Saxon ǣrest . See Ere .] [ Archaic] 1. First. Chaucer. 2. Previously; before; formerly; heretofore. Chaucer. « Tityrus, with whose style he had erst disclaimed all a...
Found on http://www.encyclo.co.uk/webster/E/64

Erst

Erst is the collective noun for a group of bees.
Found on http://www.probertencyclopaedia.com/browse/BE.HTM
No exact match found