English
subdictionary
From sub- + dictionary.
Formed from sub- + dictionary
Proto-Indo-European *upó ‘up; from below’
Proto-Italic *supo ‘under’
Latin sub ‘under, beneath, below’
English sub-
Proto-Indo-European *deyḱ- ‘to point out’
…
Latin dictiō ‘a speaking’
Latin dictiōnārius
Medieval Latin dictiōnārium
Middle English dixionare
English dictionary
Today it means
noun A subset of a dictionary
Language periods are conventional ranges, not dates for this word.
Etymograph / subdictionary