fastbúnaður (Icelandic) comes from Icelandic búnaður, from Old Norse búnaðr, from Old Norse búa, from Proto-Germanic būaną, from Proto-Indo-European bʰuH- — to become, grow, appear.
fastbúnaður (Icelandic): firmware
Definitions
firmware
Ancestry of “fastbúnaður”, step by step
fastbúnaður traces back through two separate lines of ancestry.