This is the 385th most frequent Icelandic word.
nk
The Icelandic "nk" is not a standalone word but often a shorthand or part of a word. Context is needed for precise meaning.
In this context, 'nk' refers to 'nokk' or 'nokkurt' which means 'some', but here it might be simply an abbreviation or used for emphasis, which requires specific local context.
Strákurinn leiddi hestinn nk í garðinn.
The boy led the horse nk into the garden.
The term 'nk' is used colloquially to imply 'some time' or as a short form for some expression, depending on regional dialects.
Við fórum nk á laugardagskvöld.
We went nk on Saturday night.
Here 'nk' could stand for 'næstkomandi', meaning 'upcoming' or 'next'. This shows another possible use as an abbreviation.