þunnur
þunnur is an Old Norse word meaning "thin" or "slender." It is an adjective that describes something lacking in thickness or substance, or someone being lean or gaunt. The word appears in various Old Norse texts, including sagas and poetry, often used to describe physical characteristics of people, animals, or objects. For instance, it might be used to describe a thin cloak, a slender horse, or a person who has become emaciated.
The etymology of þunnur can be traced back to Proto-Germanic *þunnuz, which shares cognates with words in