Questions & Answers about Nýja leikfangið er mjög fyndið.
The ending -ið is the definite article attached to the noun.
- leikfang = a toy (indefinite)
- leikfangið = the toy (definite)
In Icelandic, “the” is usually a suffix on the noun, not a separate word as in English. For neuter nouns in the nominative singular, the definite ending is -ið.
So leikfangið literally means toy-the, i.e. the toy.