The story
- Proto-Indo-European · inherited from*tréyes
- Proto-Germanic · inherited from*þrīz
- Proto-West Germanic · inherited from*þrīʀ
- Old English · inherited fromþrī
- Middle English · inherited fromthre
- English todaythree
From Middle English thre, threo, thrie, thri, from Old English þrī, from Proto-West Germanic *þrīʀ, from Proto-Germanic *þrīz, from Proto-Indo-European *tréyes. Doublet of tres and trey. Cognate with German drei, Albanian tre, Armenian երեք (erekʻ), Latin trēs, Latvian trīs, Lithuanian trỹs, Greek τρεῖς (treís), Old Church Slavonic трьѥ (trĭje), and others.
Words from the same roots
Proto-Indo-European*tréyes all →
contributetriterntriumvirateneo-testamentaryteapoytryzub
Etymology from Wiktionary, CC BY-SA 4.0.