Icelandic þrír

← Danish tre (cognate)

← Faroese tríggir (cognate)

← Proto-Germanic *þrīz (inherited)

← Proto-Norse ᚦᚱᛁᛃᛟᛉ (inherited)

← Old Norse þrír (inherited)

→ Faroese tríggir (cognate)

→ Icelandic þrjú þúsund (mention)

→ Icelandic þríhyrningur (mention)

→ Icelandic þristur (mention)

→ Icelandic þríhyrnuburkni (affix)

→ Luxembourgish dräi (cognate)

→ Norwegian Bokmål tre (cognate)

→ Norwegian Nynorsk tre (mention)

→ Norwegian Nynorsk tri (mention)

→ Norwegian trí (mention)

→ Norwegian trir (mention)

→ Swedish tre (mention)