This is the 231st most frequent Icelandic word.
mest
"Most."
In this sentence, 'mest' is used as an adverb to mean 'mostly'.
Þetta er besta veðrið sem við höfum upplifað, mest af sólinni.
This is the best weather we've experienced, mostly sunny.
In this sentence, 'mest' is used as an adverb to indicate the superlative preference.
Mér líkar mest við þetta lag í tónlistinni.
I like this song the most in the music.
In this sentence, 'mest' functions as an adverb to express the highest degree of the action performed.