Today's fabulous word is:
Hypocorism [hy-pok-er-riz-uhm, hi-]
1. a pet name.
2. the practice of using a pet name.
3. the use of forms of speech imitative of baby talk, esp. by an adult.
From Latin hypocorisma, from Greek hupokorisma, from hupokorizesthai, hypo-, beneath, secretly; korizesthai, to caress.
I was always jealous of all the people I knew with great nicknames, and always wanted a hypocorism of my own. Over there was Weeksey, and there's Gus, and there you can see Frankie, Kel, Kyles, Blackbeard and Boss - you can't do much with a name like mine, though, so the best I ever got was 'Oi, dickhead!'