I had never until just now considered the possibility that “you” might be the thorn misprint of “thou”, just like how in “ye olde shoppe” was (according to legend) pronounced “the old shop” because Y got used in printing presses as a stand-in for the thorn “Þ” character they didn’t have, that looks kinda-sorta like a Y. Seems like the answers suggest I’m just imagining something that didn’t happen, but it was a fun t…
I believe it was a stand in for yᷤ instead of Þ, which is a much smaller leap.
þ?
I can see it is LATIN SMALL LETTER Y + COMBINING LATIN SMALL LETTER S .. not sure what that ligature is, though. My knowledge of old English is very lacking :)