“That dog is a wolf, is he not?”
"Aye, well, mostly."
A small flash of hazel told him not to quibble.
"And yet he is thy boon companion, a creature of rare courage and affection, and altogether a worthy being?"
"Oh, aye," he said with more confidence. "He is."
She gave him an even look.
"Thee is a wolf, too, and I know it. But thee is my wolf, and best thee know that."
An Echo in the Bone by Diana Gabaldon