Sack-pfif (f)
(with) definite article: dieTerm according to Kuhač, "obviously taken from the Scottish", which in my perception is a rather dubious observation (Compare similar German terms).
Kuhač, Franjo Š. [Šaver]: Prilog za poviest glasbe južnoslovjenske: Gajde [Contribution to the history of South Slavic music: Bagpipes]. In: Rad jugoslavenske akademije znanosti i umjetnosti, knjiga L (Zagreb, 1879), p.76.