lex·is 
(lĕksĭs)
(lĕksĭs)n.
The total set of words in a language as distinct from morphology; vocabulary.
[Greek, speech, word; see LEXICON.]
- interpleader
- interpolate
- interpolation
- interpolative
- interpolator
- interposal
- interpose
- interposer
- interposition
- interpret
- interpretability
- interpretable
- interpretableness
- interpretation
- interpretational
- interpretative
- interpreted language
- interpreter
- interpretive
- interpretively
- interpupillary
- interracial
- interregional
- interregnal
- interregnum