Spooney

Part of speech: noun (n.)

A weak-minded or silly person; one who is foolishly fond. [Colloq.] There is no doubt, whatever, that I was a lackadaisical young spooney. Dickens.

Part of speech: adjective (a.)

Weak-minded; demonstratively fond; as, spooney lovers. [Spelt also spoony.] [Colloq.]