English
Tonian
Tonian comes from Ancient Greek τόνος ‘stretch’, from Proto-Hellenic *tónos ‘rope, cord’, and ultimately from Proto-Indo-European *ten- ‘stretch’.
- Proto-Indo-Europeanc. 4500–2500 BCE*ten-‘stretch’reconstructed
- Proto-Indo-European, derivedc. 4500–2500 BCE*tón-osreconstructed
- Proto-Hellenicc. 2200–1600 BCE*tónos‘rope, cord’reconstructed
- Ancient Greekc. 800–300 BCEτόνοςtónos‘stretch’
- EnglishtodayTonian
attested reconstructed ? uncertain or disputed
Lineage
- Proto-Indo-Europeanc. 4500–2500 BCE*ten-‘stretch’reconstructed
- Proto-Indo-European, derivedc. 4500–2500 BCE*tón-osreconstructed
- Proto-Hellenicc. 2200–1600 BCE*tónos‘rope, cord’reconstructed
- Ancient Greekc. 800–300 BCEτόνοςtónos‘stretch’
- EnglishtodayTonian
Linked words
through Proto-Indo-European *ten- ‘stretch’
continue, content, entertainment, tight, obtain, maintenance, contain, retain, tennis, tender, continuous, sustain, continent, detention, retention, tenant, tenor, rein, pertinent, pristine, continuum, detain, abstinence, tenacity, abstain, tendon, tenacious, tenet, pertain, tenement, sustenance, countenance, incontinence, tetanus, retinue, tenable, tantra, maintainer, abstention, retentive, 68 more
through Proto-Hellenic *tónos ‘rope, cord’
through Ancient Greek τόνος ‘stretch’
Today it means
adj Of a geologic period within the Neoproterozoic era from about 1000 to 850 million years ago.
Language periods are conventional ranges, not dates for this word.
Etymograph / Proto-Indo-European *ten- / Tonian