acknow

transitive verb

acknew; acknown; acknowing; acknows

obsolete

: to confess knowledge of

Word History

Etymology

Middle English aknowen, going back to Old English oncnāwan, acnāwan "to know, recognize, admit, confess," from a-, on-, prefixal use of on on entry 1 + cnāwan "to know entry 1"

The Ultimate Dictionary Awaits

Expand your vocabulary and dive deeper into language with Merriam-Webster Unabridged.

1. Expanded definitions
2. Detailed etymologies
3. Advanced search tools
4. All ad-free

Discover what makes Merriam-Webster Unabridged the essential choice for true word lovers.

Start Your Free Trial Now