English
helionium
Helionium comes from English helium.
- English1500–presenthelium
- Englishtodayhelionium
attested reconstructed ? uncertain or disputed
Lineage
- English1500–presenthelium
- Englishtodayhelionium
Formed from helium + -onium
Proto-Indo-European *sóh₂wl̥ ‘sun’
Proto-Hellenic *hāwélios ‘sun’
Ancient Greek ἥλιος ‘sun’
New Latin helium
English helium
Every English word from English helium
Today it means
noun Any atomic system containing a helium nucleus and an antihelium nucleus.
Language periods are conventional ranges, not dates for this word.
Etymograph / English helium / helionium