English
eigen-
Eigen- comes from German eigen ‘own’, and goes back to Proto-Indo-European *h₂eyḱ- ‘to appropriate, possess’.
- Proto-Indo-Europeanc. 4500–2500 BCE*h₂eyḱ-‘to appropriate, possess’reconstructed
- Proto-Indo-European, derivedc. 4500–2500 BCE*h₂eh₂óyḱe‘to possess, to own’reconstructed
- Proto-Germanicc. 500 BCE–200 CE*aiganą‘to possess, to own, to have’reconstructed
- Proto-Germanic, derivedc. 500 BCE–200 CE*aiganazreconstructed
- Proto-West Germanicc. 200–500 CE*aiganreconstructed
- Old High Germanc. 750–1050eigan‘own’
- Middle High Germanc. 1050–1350eigen
- Germanc. 1650–presentsame form‘own’
- Englishtodayeigen-
attested reconstructed ? uncertain or disputed
Lineage
- Proto-Indo-Europeanc. 4500–2500 BCE*h₂eyḱ-‘to appropriate, possess’reconstructed
- Proto-Indo-European, derivedc. 4500–2500 BCE*h₂eh₂óyḱe‘to possess, to own’reconstructed
- Proto-Germanicc. 500 BCE–200 CE*aiganą‘to possess, to own, to have’reconstructed
- Proto-Germanic, derivedc. 500 BCE–200 CE*aiganazreconstructed
- Proto-West Germanicc. 200–500 CE*aiganreconstructed
- Old High Germanc. 750–1050eigan‘own’
- Middle High Germanc. 1050–1350eigen
- Germanc. 1650–presentsame form‘own’
- Englishtodayeigen-
Linked words
through Proto-Indo-European *h₂eyḱ- ‘to appropriate, possess’
through Proto-Germanic *aiganaz
through Proto-West Germanic *aigan
Today it means
prefix Forms terms pertaining to or related to eigenvectors, eigenvalues; especially for naming mathematical objects which are not affected by a given linear transformation except for by scalar multiplication.
Language periods are conventional ranges, not dates for this word.
Etymograph / Proto-Indo-European *h₂eyḱ- / eigen-