Question: Where does the term cupboard love come from?
Disambiguated questions and answers: question: From whose work does the term cupboard love come from?
From what era does the term cupboard love come from?
From what field does the term cupboard love come from?
answer: Sigmund Freud, Anna Freud, Melanie Klein and Mary Ainsworth
1950s and 1960s
psychoanalysis
Natural Questions answer: English (from the Wikipedia article "Cupboard love")