(Title in Polish - 'O derywatach deminutywnych w górnoluzyckich piesniach ludowych (w odniesieniu do dialektów i wspólczesnego jezyka górnoluzyckiego'). Deminutiwa are frequently met in Upper Sorbian folk songs. They tend to play rather emotional than descriptive role (the former by informing about the size of an object) and above all in composing verses. It is not always possible to conclude whether given derivative plays in a song the clearly defined qualitative semantic role. Some, being first diminutive might become basic words like 'lastojcka / lastolcka', have in present Sorbian's dialects been only structural derivatives. In some cases the structural diminutive form indicates regional differentiation like '(corna) jahodka' near the village of Kamjenc. By comparing to the contemporary Upper Sorbian's language, the structural distinction of the folk songs' diminutives has been proved, like 'jecmenik', 'zwonask', which were created solely for the purpose of composing the verse.