wordhoard
/ˈwəːdhɔːd/originally poetic
noun
A store of words; (in later use especially) the vocabulary of a person, group, or language.
- In modern use first appearing in translations of or references to the Old English word; now in more general use, although still somewhat archaic ..
Origin
Old English; earliest use found in Metres of Boethius. From word + hoard.