Aah

(used as an exclamation expressing surprise, delight, joy, etc.)
the exclamation “aah.”.
to exclaim or utter “aah”:
We all oohed and aahed at the lovely birthday cake.
Historical Examples

France is outraging and robbing Germany when wounded and a prisoner (aah).
The New Germany George Young

The curate saluted Doña Consolacion, who responded with a yawn and an “aah!”
Friars and Filipinos Jose Rizal

On Page 181 “for Ah’ll stan’ none” changed to “for aah’ll stan’ none” (consistent with spelling in same speech).
Border Ghost Stories Howard Pease

Ay, aah’ll fetch t’ coo in i’ guid time, there’s no call t’ bang us that gait.’
Border Ghost Stories Howard Pease

Academy on Architecture for Health
Alliance for Alternatives in Healthcare