This is a Troublesome Pair suggested by Mr Libro, my dear husband. I’m not sure anyone will get these mixed up, but they are fun words, aren’t they? A bit of a tongue-twister, too …
Undulant is a second adjective that originates from undulate (the more common adjective is undulating, but why have one adjective when you can have two lovely unusual ones?). So it means something that is undulating, or moving with a smooth, wave-like action.
An unguent, which is a noun, is a soft and viscous or greasy substance which is used either for lubrication or as an ointment.
So now you know.
You can find more troublesome pairs here, and here’s the index to them all!
LibroEditing proofreading, editing, transcription, localisation 
Don Massenzio
March 2, 2017 at 4:06 pm
Reblogged this on Don Massenzio's Blog and commented:
Check out this short post on the difference between undulant and unguent from the Libro Editing blog.
LikeLike
D.E. Haggerty
March 2, 2017 at 4:16 pm
Is it weird that I find unguent sexy? *slaps hand over mouth in horror*
LikeLike
Liz Dexter
March 2, 2017 at 4:24 pm
Well, it’s better than some of the words I’ve featured recently …
LikeLiked by 1 person
Thomas Weaver
March 2, 2017 at 4:18 pm
I never realized that some people confuse these two words. Thanks for pointing it out.
LikeLike
Liz Dexter
March 2, 2017 at 4:24 pm
Sometimes I don’t believe it either, and then I find people have found the articles by searching for those very two words!
LikeLiked by 1 person