Without Y-to-an-I-And-Add-E-S

(looks at my own last comment, mumbles to self)

Valleys is pluralized without y-to-an-i-and-add-e-s.

I've known this for six decades, yet it never hit me before until I noticed that it passed the spill-chorker. I even typed "vallies" to see if the browser's dictionary thought it was a variant spelling, even tho I knew better.

When we were home-schooling our little autodidacts, we told them, the main rule of English is that the exception is the rule.