Quit a few older people in the North West still use "thee" ( ee as in Tea)"tha"(a as in hat or in some places a as in RP father) along with many other dialect words such as skrike(to cry)which has the same meaning in Norse languages.
One of the sad losses from these dialects is "my'n or thy'n" (y as in why) as:-
"Whose is it; my'n or thy'n?"
Much more musical than "mine or yours".
All the best PP