English word decillion comes from English -illion, English deca-
| Dictionary entry | Language | Definition |
|---|---|---|
| -illion | English (eng) | Added to various nonsense syllables to indicate an arbitrarily very large number.. Combined with Latin prefixes for names of integers in order to form names of powers of a million or of a thousand greater than 1,000,000. Thus we have the names billion, trillion, etc. |
| deca- | English (eng) | In the International System of Units and other metric systems of units, multiplying the unit to which it is attached by 10. Symbol: da. Ten. |
| decillion | English (eng) | (US; modern British & Australian, short scale) 1033.. (dated British & Australian, long scale) 1060. |