(rare) To show affection to; to have affection for.
(obsolete, reflexive) To emotionally attach (oneself) to.
Plutarch saith fitly of those who affectionate themselves to Monkies and little Dogges, that […].
1838 February 1, Charles Dickens, To Catherine Dickens, 2012, Jenny Hartley (editor), The Selected Letters of Charles Dickens, page 41,
Ever my dear Kate your affectionated husband
CHARLES DICKENS