PTS Pali-English dictionary - The Pali Text Society's Pali-English dictionary
ātuman
Ātuman,[Vedic ātman,diaeretic form for the usual contracted attan; only found in poetry.Cp.also the shortened form tuman] self.Nom.sg.ātumo Pv IV.52 (= sabhāvo PvA.259),ātumā Nd1 69 (ātumā vuccati attā),296 (id.),& ātumāno Nd1 351; Acc.ātumānaṁ Sn.782 (= attānaṁ SnA 521),888,918; Loc.ātume Pv.II,1311 (= attani C.).(Page 98)