From Wiktionary, the free dictionary
Older form of halvtreds. From halvtredje (“two and a half”, literally “half third”) + sinde (“times”) + tyve (“twenty”).
- IPA(key): /halvˈtresənsˌtyːvə/, [halˈtˢʁ̥æsn̩sˈtˢyːʋə], [-ˈtˢyːʊ]
halvtredsindstyve
- (dated) fifty