This is the 473rd most frequent Icelandic word.
erlendis
Abroad.
The word 'erlendis' in this sentence indicates that he lives in a different country from the one being spoken about (abroad).
Hann býr erlendis.
He lives abroad.
Here, 'erlendis' refers to traveling to a foreign country in the future.
Við trúðum alltaf að hún myndi ferðast erlendis einhvern dag.
We always believed that she would travel abroad one day.
In this context, 'erlendis' is used to describe a general concept of being or living in a foreign country.