Wow, I’ve never come across that word before, but it certainly could prove quite useful in certain places. Thanks to Guyomar for the examples of contexts where English learners can use the word.
By the way, Jerry, this should really go without saying, but I love how you gave proper credit to your source and even included the link. That will definitely be extremely helpful for any learners who would like to increase their knowledge on the subject (now, rather than waiting for you to post a “Part II: Word of the Day Returns”
Som: Someone should probably propose your spelling change to the good folks at Cambridge :)