Firstly, that’s incorrect in terms of phonics, as seen in so, no, go, hello, etc.
Secondly, “tho” was a common replacement as part of American English spelling reform - see also “thru” and “OK” as survivors of this reform, even if they’re perceived as informal.
*though or thoe. You need the letter ‘e’ to make the ‘o’ long.
kindly fuck off
Firstly, that’s incorrect in terms of phonics, as seen in so, no, go, hello, etc.
Secondly, “tho” was a common replacement as part of American English spelling reform - see also “thru” and “OK” as survivors of this reform, even if they’re perceived as informal.