What is the meaning of Annat?

Alternative form of annate

second-person singular present indicative of antaa

third-person singular present active indicative of annō

neuter of annan; succeeded by anna

neuter nominative/accusative singular of annarr

neuter singular of annan; other, else

other things, other stuff (when not used as a determiner (not followed by a noun or noun phrase))

Source: wiktionary.org