→
Old English sin (inherited)→
Cimbrian soi (inherited)→
Cimbrian zain (inherited)→
German sein (inherited)→
North Frisian sin (inherited)→
Hunsrik sein (inherited)→
Old Dutch sin (inherited)→
Old Frisian syn (derived(ofs/fy))→
Old Saxon sin (inherited)→
Saterland Frisian sin (inherited)