Tavastia

Borrowed from Medieval Latin Tavastia, equivalent to Tavast +‎ -ia from Old East Norse Tafæistaland (attested in 11th century runestone Gs 13 as ᛆ ᛏᛆᚠᛋᛏᛆᛚᚭᚿᛏᛁ, transliterated "a tafstalãnti", normalized "a Tafæistalandi" 'in Tavastia'), from Tafæistr (“Tavast”) + land, the former probably being derived from tafʀ (“laggard”) + Æistʀ (“Estonian”).

Tavastia

1. A historical province of Sweden, c. 1250 to 1809, and of Finland, since 1809. Official name: Häme
2. Tavastia Proper (a region in Finland; official name: Kanta-Häme)
3. Päijänne Tavastia (a region in Finland; official name: Päijät-Häme)

• Tavastum

• Tavasthia

Medieval Latin Tavastus +‎ -ia from a calque of Old East Norse Tafæistaland, from Tafæistr (“Tavast”) + land, the former probably being derived from tafʀ (“laggard”) + Æistʀ (“Estonian”).

• (Classical) IPA^(key): /taˈu̯as.ti.a/, [t̪äˈu̯äs̠t̪iä]
• (modern Italianate Ecclesiastical) IPA^(key): /taˈvas.ti.a/, [t̪äˈväst̪iä]

Tavastia f sg (genitive Tavastiae); first declension (Medieval Latin, New Latin)

1. Tavastia, Häme (a historical province of Sweden, c. 1250 to 1809, and of Finland, since 1809)
2. Tavastia Proper (a region in Finland; official name: Kanta-Häme)

   Synonym: Tavastia Propria

3. Päijänne Tavastia (a region in Finland; official name: Päijät-Häme)

First-declension noun, with locative, singular only.