Meaning

noun a listing of the words used in some enterprise

noun a language user's knowledge of words

noun the system of techniques or symbols serving as a means of expression (as in arts or crafts)

originEtymology tree Proto-Indo-European *wekʷ-der. Proto-Indo-European *wokʷ-der. Latin voc(ā) Proto-Indo-European *-dʰlomder. Latin -bulum Latin vocābulum Proto-Indo-European *-yósder. Proto-Italic *-āzijos Latin -ārius Latin -ārium Medieval Latin vocābulāriumlbor. English vocabulary Learned borrowing from Medieval Latin vocābulārium. Doublet of vocabularium.

Etymology from Wiktionary, CC BY-SA 3.0