Breakdown of Nafnið þitt er mjög fallegt.
vera
to be
fallegur
beautiful
mjög
very
þinn
your (m, f, n: þinn, þín, þitt)
Questions & Answers about Nafnið þitt er mjög fallegt.
Why is the word order nafnið þitt instead of "your name"?
In everyday Icelandic, possessive pronouns like þitt usually come after the noun. When they do, the noun must have the definite article (the "the" ending) attached to it. So, you say nafnið þitt (literally: the-name your). Putting the pronoun first without the article (þitt nafn) is grammatically correct but sounds very formal or poetic.
Why do we use þitt for "your" here instead of þinn?
Possessive pronouns have to match the gender of the noun they own. Because nafn (name) is a neuter noun, the pronoun changes to its neuter form, þitt. If you were talking about a masculine noun, like a dog (hundur), you would use the masculine form: hundurinn þinn.
Why does the word for beautiful end in a "t" (fallegt)?
Just like the possessive pronoun, adjectives have to match the gender of the noun they describe. The base dictionary form of this adjective is masculine (fallegur). Because it describes the neuter noun nafn, it drops the -ur and takes the neuter ending -t, becoming fallegt.