English
hexadecanion
Hexadecanion comes from Ancient Greek ἑκκαίδεκα ‘sixteen’.
- Ancient Greekc. 800–300 BCEἑκκαίδεκαhekkaídeka‘sixteen’
- Englishearliest quotation 2013hexadecanion
attested reconstructed ? uncertain or disputed
Lineage
- Ancient Greekc. 800–300 BCEἑκκαίδεκαhekkaídeka‘sixteen’
- Englishearliest quotation 2013hexadecanion
Earliest quotation: 2013, Salomon S Mizrahi and Marcos C de Olivei, Quaternions, hexadecanions and the Schur complement in quant: “We extend this very concept to the larger mathematical…”
A blend of hexadeca- + quaternion
Proto-Indo-European *déḱm̥ ‘ten’
Proto-Hellenic *dékə ‘ten’
Ancient Greek δέκᾰ ‘ten’
Ancient Greek δεκάς ‘the number ten’
Late Latin decas
English hexadeca-
Proto-Indo-European *kʷetwóres ‘four’
Late Latin quater ‘four times’
Late Latin quaternī ‘four each’
Late Latin quaterniō ‘the number four’
Middle English quaterniǒun ‘an ancient Roman leader of a squad of four…’
English quaternion
Every English word from Ancient Greek ἑκκαίδεκα
Today it means
noun An alternative name for a sedenion, a 16-dimensional hypercomplex number or a 16-dimensional number constructed by doubling the quaternion.
Language periods are conventional ranges, not dates for this word.
Etymograph / Ancient Greek ἑκκαίδεκα / hexadecanion