In Serer, Tim (proper : o tim[4]) means matriclan[7] or the maternal origins of an individual.[4] The term o tim ole (var : tim ola[4]) means the matriclan[8] or the name of the family by the mother's line.[4] The name of the family by the father's line (i.e. surname) is called Simangol.
Ozero Baykal; IPA: [ˈozʲɪrə bɐjˈkal]; Buryat: Байгал нуур, Mongol: Байгал нуур, Baygal nuur, a kayatna a sawen ket "masna a danaw";[3] Kirgistan: Байкол, a kayatna sawen ket "nabaknang a danaw") ket isu ti kaduogan a danaw iti lubong,[4] iti 25 a riwriw a tawtawen.[5]