Gain access to thousands of additional definitions and advanced search features—ad free! JOIN NOW
: by the month
1600, in the meaning defined above
Keep scrolling for more
Share per mensem
Resources for per mensem
Time Traveler for per mensem
See more words from the same year
Comments on per mensem
What made you want to look up per mensem? Please tell us where you read or heard it (including the quote, if possible).
noxious or harmful
Get Word of the Day daily email!
A Thanksgiving Word Quiz
Test your visual vocabulary with our 10-question challenge!
Test Your Knowledge - and learn some interesting things along the way.
Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!
Read this into the night.
A common word, but only by a whisker
Semantic bleaching and the power to amaze
Cans of worms, wild-goose chases, and more
And is one way more correct than the others?
The story of an imaginary word that managed to sneak past our editors and enter the dictionary.
How to use a word that (literally) drives some people nuts.
The awkward case of 'his or her'
We are thankful for obscure words.
Another round of challenging vocab!
A game of winding words.