Origin: French suffix -age
Oral stage has 2 different meanings across 1 category:
(psychoanalysis) the first sexual and social stage of an infant's development; the mouth is the focus of the libido and satisfaction comes from suckling and chewing and biting
In Freudian psychoanalysis, the first stage of psychosexual development, during early infancy, when the mouth of the infant is his/her primary erogenous zone.