From Wiktionary, the free dictionary
sartin
- Pronunciation spelling of certain.
1841, Various, Punch, Or The London Charivari, Vol. 1, July 17, 1841[1]:If the marrow in one's backbone should melt, it would be sartin to run out at the tip of one's tail.
1910, Edward Marshall, Charles T. Dazey, In Old Kentucky[2]:This here's a mountain fireplace, sartin sure.
- tairns, trains, Tarins, santir, instar, Strain, rinsta, Trains, tarins, atrins, S-train, starin', strain