Finnish torstai

← Old Swedish þōrsdagher (borrowed)

← Proto-West Germanic *Þunras dag (derived)

→ Finnish helatorstai (mention)

→ Finnish kiirastorstai (mention)

→ Finnish torstainen (suffix)

→ Finnish torstaisin (suffix)

→ Finnish torstaiaamu (compound)

→ Finnish torstai-ilta (compound)

→ Finnish torstaiaamupäivä (affix)

→ Finnish torstai-iltapäivä (affix)

→ Finnish torstaipäivä (affix)

→ Kven tuorestai (inherited)