This is the 106th most frequent Icelandic word.
munu
The Icelandic word "munu" is a modal verb used to indicate the future tense or express probability.
'Munu' is used here as an auxiliary verb to indicate future tense.
Þeir munu koma á morgun.
They will come tomorrow.
'Munu' serves as an auxiliary verb, marking the sentence in future tense, while its root form 'muna' means 'to remember'.
Ég mun muna þessa stund að eilífu.
I will remember this moment forever.
'Mundu' is the past subjunctive form of 'munu', used here to express a future possibility reported in the past.