SYNE
Meaning of SYNE in English
/suyn/ , adv., prep., conj. Scot. and North Eng.
since.
[ 1300-50; ME (north) seine, syn, contraction of sethen since; see SITH ]
Random House Webster's Unabridged English dictionary.
Полный английский словарь Вебстер - Random House .
2012