grúpufræði

== Icelandic == === Etymology === From grúpa (“group”) +‎ -fræði (“-logy”). === Pronunciation === IPA(key): /ˈkruːpʏ.fraiːðɪ/ === Noun === grúpufræði f (genitive singular grúpufræði, no plural) (group theory) group theory ==== Declension ====