PTS Pali-English dictionary - The Pali Text Society's Pali-English dictionary
Sotti
Sotti,(f.) [Sk.śukti] a shell (?) filled with chunam and lac,used for scratching the back,a back-scratcher acting as a sponge M.II,46; A.I,208; see sutti e.g.Vin.II,107.(Page 725)
U Hau Sein’s Pāḷi-Myanmar Dictionary ပါဠိျမန္မာ အဘိဓာန္(ဦးဟုတ္စိန္)