kahdeksan

Etymology
From, from (cognate with 🇨🇬, 🇨🇬). The initial component is, but the nature of the latter component (shared with ) remains disputed (see the Proto-Finno-Permic entry for more).

The original nominative was replaced by the genitive form due to  and  ending in -n (which is also the genitive ending), but is attested in older texts, particularly in compounds. Alternatively the final *-n may in fact be regular and originally a part of the suffix.

Numeral

 * 1)  eight

Usage notes

 * See Appendix:Finnish numbers.

Declension
Declension is the same as type koira (number 10), except for the nominative singular form which is identical to the genitive singular form.