unknow

1 of 2

transitive verb (1)

un·​know

"+

: to be ignorant of

unknow

2 of 2

transitive verb (2)

"

: to cease to know : forget

Word History

Etymology

Transitive verb (1)

Middle English unknowen, from un- entry 1 + knowen to know

Transitive verb (2)

un- entry 2 + know

Love words?

You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Start your free trial today and get unlimited access to America's largest dictionary, with:

• More than 250,000 words that aren't in our free dictionary
• Expanded definitions, etymologies, and usage notes
• Advanced search features
• Ad free!