Þýskum
Þýskum is the dative plural form of the Icelandic word "þýskur," which translates to "German." In the context of Icelandic grammar, it is used when referring to multiple German people or things in a sentence where the grammatical case is dative. For example, in the sentence "Ég talaði við þýskum ferðamenn" (I spoke with German tourists), "þýskum" is used because "ferðamenn" (tourists) is the object of the preposition "við" (with), which typically governs the dative case. This grammatical form is essential for constructing grammatically correct sentences in Icelandic when referring to German individuals or concepts in a dative context. Understanding the declension of adjectives like "þýskur" is a fundamental aspect of learning Icelandic. The use of dative case with plural adjectives indicates that the noun they modify is also plural and situated within a dative grammatical structure.