threeness

threeness · noun¹

From three + -ness. Compare Middle English þrinnesse, þrimnesse, þremnesse, þrumnesse (“trinity”, literally “three-ness”), Old English þrīnes, þrīnness (“trinity”, literally “three-ness”).

Threeness · proper noun²

1. Old English · inherited fromþrȳnes
2. Old English · inherited fromþrynnes
3. Middle English · inherited from*Threnesse
4. English todayThreeness

From Middle English *Threnesse, Thrumnesse, Thrimnesse, from Old English þrynnes, þrinness, variants of Old English þrȳnes, þrīnes (“Trinity”), equivalent to three + -ness.