Þórðar

Þórðar is a grammatical form of the Icelandic male given name Þórður, used in Old Norse and Icelandic texts to indicate possession or association. In modern Icelandic, Þórður remains the standard given name, while Þórðar appears primarily as a genitive or dative form in written language and in historical sources.

In linguistic and textual contexts, Þórðar is commonly encountered as the possessive of Þórður, for example in phrases like bók Þórðar, meaning “Þórðar’s book.” The form also appears in inscriptions and sagas when referring to a person named Þórður in possessive construction or in other cases that require the inflected form of the name. The usage reflects Icelandic declension rules for masculine proper names and older Scandinavian naming practices.

Þórður itself is a traditional Norse name, widely attested in medieval texts and still found in Iceland today. It is typically linked to the god Thor in its Old Norse origin, and it belongs to a broader family of personal names built from the theonym Thor and various affixes. The element Þór is a common root in many Norse names and points to the broader onomastic context of the period.

Notable individuals are generally named Þórður rather than Þórðar; thus, Þórðar is chiefly of interest as a historical or linguistic form rather than as a contemporary given name. See also Þórður, Old Norse given name, and discussions of Icelandic naming conventions and genitive usage in proper names.