- Obsolete spelling of
- The spelling october was deprecated in 1996 in the new Groene Boekje (“Little Green Book”) spelling reform.
From Latin octo (“eight”) + Latin -ber from -bris, an adjectival suffix. By analogy with september, as if octō (“eight”) : septem. In the Roman calendar, the year began with mārtius (“March”), and octōber was the eighth month of the year.
- Of October.
In Latin, the month names are used as adjectives. In the Classical period, this adjective modifies a noun identifying a particular day, from which the date was reckoned. In Medieval Latin and later periods, the adjective modifies a numeral for the day of the month.
Third declension, masculine nominative singular in -er, neuter in -e.
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