The Collaborative International Dictionary
Smittlish
Smittle \Smit"tle\ (sm[i^]t"t'l), Smittlish \Smit"tlish\
(-tl[i^]sh), a.
Infectious; catching. [Scot. & Prov. Eng.]
--H. Kingsley.
Wiktionary
smittlish
a. (context Scotland dialect English) infectious; catching