abbhuṃ

(interj.) alas, terrible, dreadful, awful (excl. of fright & shock) Vin.ii.115 (Bdhgh. explains as “utrāsa-vacanam-etaṃ”); MN.i.448. See also abbhu & abbhuta.

Vedic abhvaṃ, nt. of abhva, see expld. under abbhamatta. Not quite correct Morris J.P.T.S. 1889, 201: abbhuṃ = ā + bhuk; cp also abbhuta