Mid 19th century; earliest use found in Charlotte Riddell (1832–1906), novelist. Apparently arbitrarily (apparently hypocoristic) extended form of puss, although compare later pussums.
Definition of pussens in US English:
pussens
nounˈpʊsɪnz
informal, nursery
(A term of endearment for) a cat.
Origin
Mid 19th century; earliest use found in Charlotte Riddell (1832–1906), novelist. Apparently arbitrarily (apparently hypocoristic) extended form of puss, although compare later pussums.