noun · 1 senses · updated from the 2026-07-25 local source snapshot
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
Sound
Pronunciation
Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.
Received-Pronunciation:hĕl'yo͝oō lĭbrôʹrəm
Received-Pronunciation:/ˌhɛljʊəʊ lɪˈbɹɔːɹəm/
Southern-England:Recorded audio is listed in the source snapshot.
General-American:hĕl'yo͞oō lĭbrôrʹəm
General-American:/ˌhɛljuoʊ lɪˈbɹɔ(ə)ɹəm/
General-American:/-lə-/
Received-Pronunciation:hĕlyo͝oō'nēz lĭbrôʹrəm
Received-Pronunciation:/ˌhɛljʊˈəʊniːz lɪˈbɹɔːɹəm/
General-American:hĕlyo͞oō'nēz lĭbrôrʹəm
General-American:/ˌhɛljuˈoʊniz lɪˈbɹɔ(ə)ɹəm/
rhymes with -ɔːɹəm
1
noun
Meaning 1
An insatiable and obsessive bookworm (“avid book reader”).
Definition source: English Wiktionary via Wiktextract
Usage: archaic, literary
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
History
Etymology
Learned borrowing from Late Latin helluō librōrum (“glutton of books”), from Latin helluō (“glutton; squanderer”) + librōrum (“of books”). Helluō is derived from helluārī + -ō (suffix forming masculine agent nouns, nicknames, and other designations); helluārī is the present active infinitive of helluor (“to be a glutton, gormandize”), further etymology unknown. Librōrum is the genitive plural form of liber (“book; inner bark of a tree”), ultimately from Proto-Indo-European *lewbh- (“to cut off, peel”)). The plural form is also borrowed from Late Latin helluōnēs librōrum.
Across languages
Translations
4 source translations are retained for this English entry.
Italian:
divoratore di libri
— insatiable and obsessive bookworm
Latin:
helluō librōrum
— insatiable and obsessive bookworm
Norwegian Bokmål:
bokorm
— insatiable and obsessive bookworm
Norwegian Bokmål:
lesehest
— insatiable and obsessive bookworm