hafður

Could you clarify what sense of "hafður" you’d like the article to cover? It could refer to (a) a place or geographic name, (b) a person or surname, or (c) a linguistic term in Icelandic (for example a participial/adjectival form). If you don’t have a specific sense in mind, I can write a concise, neutral wiki-style entry focusing on the linguistic usage of the term in Icelandic and note any commonly referenced senses.