I was having a conversation recently and used the word height. What stands out to me is that I pronounced it /haɪθ/ as opposed to /haɪt/. I realized that I pronounce it this way quite often.
Is this related to Grimm's Law or could it just be because of the pronunciations of width and length?
Follow up question: Is this a common phenomenon; is it something that's catching on and starting to become part of the English language?
I am a native speaker from the U.S.