Compounds

Q. Is login a verb or only a noun? I’m wondering because the following sentence seems wrong to me: “To login to your personal account, enter your user name and password.” Shouldn’t it say log in as two words rather than login?

A. The verb is log in; log-in or login is the noun. You can confirm this in a dictionary.

[This answer relies on the 17th edition of CMOS (2017) unless otherwise noted.]