"pertaining to an alphabet; in the order of the alphabet," 1560s, from alphabet + -ical. Alphabetary (adj.) also is from 1560s; alphabetic is from 1640s. Related: Alphabetically.
alphabetical writing system
dictionaries list words in alphabetical order
alpenglow
alpenhorn
alpenstock
alpha
alphabet
alphabetical
alphabetization
alphabetize
alphanumeric
Alphonso
Alpine
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