This must be an offshoot of my brother's enthusiasm for hypocorism. He was always inventing idiotic nicknames for people.
-- Adam Davies, Goodbye Lemon, 2006
Powsoddy, a now obsolete name for a pudding, was also used as a hypocorism in the late sixteenth century, paralleling the affectionate use of the word pudding itself in our own century, though lovers usually alter the pronunciation to puddin.
-- Mark Morton, The Lover's Tongue, 2003
Hypocorism entered English in the 1840s from the Greek word hypokórisma meaning "pet name." It came from the verb hypokor(ízesthai) meaning "to play the child, call by endearing names."