This is the 144th most frequent Icelandic word.
landi
Moonshine (homemade alcohol).
"Landsins" is the genitive singular form of "land," meaning "land" or "country," indicating possession or belonging in this context.
Ég fór til landsins í sumarfríinu.
I went to the land during the summer holiday.
"Landi" is the dative singular form, used here to signify origin or association with a country.
Hann er góður vinur af landi mínu.
He is a good friend from my country.
"Landsins" in genitive singular shows possession, referring to the country's future.