"Intercalate"

According to one online dictionary, the most queried after word over the past 24 hours is "intercalate."

Wonder why?

(I was on the page for my yearly reminder of what "ontology" and "teleology" mean, which I forget and confuse for no other reason than that I first learned them both at about the same time. Kind of the way everyone who had this ,or one like it, in her Latin book...

...has trouble remembering which word is for "arm" and which for "branch.")