Icelandic Etymology From æfa (“to practice”) + -ing. Pronunciation IPA(key): /ˈaiːviŋk/ Rhymes: -aiːviŋk Noun æfing f (genitive singular æfingar, nominative plural æfingar) exercise, practice rehearsal (music) etude, study Synonym: etýða workout, exercise Synonyms: líkamsæfing, líkamsræktaræfing Declension More information singular, plural ... singular plural indefinite definite indefinite definite nominative æfing æfingin æfingar æfingarnar accusative æfingu æfinguna æfingar æfingarnar dative æfingu æfingunni æfingum æfingunum genitive æfingar æfingarinnar æfinga æfinganna Close Declension of æfing (feminine) Derived terms æfingin skapar meistarann líkamsæfing líkamsræktaræfingWikiwand - on Seamless Wikipedia browsing. On steroids.