diapasonn.

diapasondiapason: [14] Diapason, a musical term now used mainly for the main stops on an organ, and also metaphorically for ‘range, scope’ in general, originally meant literally ‘through all’. It comes, via Latin diapāsōn, from the Greek phrase hē dia pasōn khordon sumphonía ‘concord through all the notes’: dia means ‘through’, and pasōn is the feminine genitive plural of pas ‘all’ (as in the English prefix pan- ‘all’).