While we don't recommend rote learning of arbitrary lists, certain word families crop up so often on 11+ papers that they're worth knowing. Here are some clusters worth exploring with your child.
Feeling and emotion
melancholy, despondent, jubilant, indignant, apprehensive, content, exasperated, wistful.
Description of character
generous, stingy, modest, arrogant, candid, evasive, meticulous, careless.
Physical world
luminous, opaque, dense, sparse, robust, fragile, conspicuous, subtle.
Action and movement
hesitate, lurch, stride, dart, linger, vanish, summon, retreat.
Practice now on vocabulary questions to see these in context. The key is meeting each word at least three times in different contexts — that's roughly when it sticks.