There are also some "common words" that are owned by other people and cannot be used on foals other than theirs (or, I guess, if they give permission). I know that "treasure" is not available to be the last word of a name... which annoyed me way back when and prompted me to snap up a favorite word of my own, perfection. Not to keep it from anyone, but to keep it from being kept from me
You can check the AMHR website for the prefix / suffix report (password: shetland).
http://www.shetlandminiature.com/ Looking through, these words are not available to the general public to go at the end of a horse's name in AMHR:
ARIZONA
BROWN
CASE
CHAMPAGNE
CHARM
COLOR
CORRAL
ELITE
EMERALD
EMPHASIS
FANTASY
GOLD DUST
GOLD TOPPER
GOLDEN BOY
HI-FI
HOBBY
IMAGE
IMPERIAL
JOLLY
KNIGHT
LANCE
LEGEND
LIGHTS
LOTTA
MARYLAND
MASTERPIECE
MEDALLION
METEOR
MISSIONS
MISSISSIPPI
MONTANA
MOUSE
O.K.
OPEN BAR
ORACLE
OZ
PAINTED
PLAYTIME
PERFECTION
POPPER
REGAL
REGARDLESS
SHOWTIME
SMILING
SOMEDAY
STYLISH
SUNTAN
SWEETDREAM
TENNESSEE
TIMBERS
TOPPER
TREASURE
TRULY YOURS
WELCOME
WISHING STAR
WONDER