PTS Pali-English dictionary - The Pali Text Society's Pali-English dictionary
Suplavattha
Suplavattha,at J.V,408 is doubtful in spelling & meaning.Perhaps to be read “suplavantaṁ” gliding along beautifully; C.expld as “sukhena plavan’atthaṁ.” (Page 719)
U Hau Sein’s Pāḷi-Myanmar Dictionary ပါဠိျမန္မာ အဘိဓာန္(ဦးဟုတ္စိန္)