from The Century Dictionary and Cyclopedia
- In grammar and logic, relating to or of the nature of a copula.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adj. of or relating to a copula
Sorry, no etymologies found.
In the Oxford English Grammar, Sidney Greenbaum writes: "If the copular verb is BE and if the subject predicative identifies the subject, the subject and subject predicative can change places."
For the grammar geeks out there, I'll quote Algeo's British or American English on the topic, "A group of copular verbs (...) have predominantly adjectival complements in common-core English, but also have nominal subject complements in British more frequently than in American."