orðsifjabók

== Icelandic == === Etymology === From orðsifjar (“etymology”) +‎ bók (“book”). === Pronunciation === IPA(key): /ˈɔrð.sɪvjaˌpouːk/ === Noun === orðsifjabók f (genitive singular orðsifjabókar, nominative plural orðsifjabækur) etymological dictionary ==== Declension ====