The closely related Libido language, located just to the north in the Mareko district of Gurage Zone, is very similar lexically, but has significant morphological differences.
In their book (English version 1999), Braukämper and Mishago compiled a reasonably sized collection of the presently vanishing art of traditional songs of Hadiyya.
The lyrics adhere to the strict rule of Hadiyya traditional poetry where rhythmical rhyming occurs at the beginning of the verse.
Agglutinative Morphology: Words are built through the addition of suffixes and infixes, marking tense, aspect, case, number, and more.
Hadiyya has a detailed system for marking nouns, with about nine main cases: absolutive (the basic form), nominative, genitive, dative, ablative, locative, instrumental, comitative, and similative.
Hadiyya also uses postpositions (similar to prepositions in English) that combine with certain cases, like the genitive or dative, to express relationships like possession or location.
This system makes Hadiyya a rich and expressive language, typical of its Highland East Cushitic family.