Proto-Norse ᚦᚱᛁᛃᛟᛉ

← Proto-Germanic *þrīz (inherited)

→ Danish tre (inherited)

→ Faroese tríggir (inherited)

→ Proto-Norse ᚦᛋᛁᛋᛉ (mention)

→ Icelandic þrír (inherited)

→ Norwegian Bokmål tre (inherited)

→ Norwegian Nynorsk tre (inherited)

→ Norwegian Nynorsk tri (inherited)

→ Norwegian trí (inherited)

→ Norwegian trir (inherited)

→ Old Norse þrír (inherited)

→ Elfdalian tri (inherited)

→ Swedish tre (inherited)