Soqotri

 

See in Soqotri Lexicon Online

ˁö́ṭaš or ˁö́ṭaʸh - to sneeze (LS 306; CSOL I 503)

PWS
*ˁṭš - to sneeze (SED I No. 4v; HALOT 814)
Probably onomatopoetic Kogan 2015:77.