Informal or colloquial term meaning inclined to give; generous or having a giving quality.
English: from 'give' plus the informal suffix -y (meaning 'having the quality of'); non-standard informal construction, not found in formal dictionaries.
Givey is probably something kids or friends say casually—'Oh, he's really givey with his snacks'—showing how English speakers naturally create adjectives even when they're not technically 'real' words yet.
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