tmight refers to both tyraels might and templars might.

also:
helms:
coa - crown of ages
nw - nightwings
armor:
nigma - enigma obvsly
gloves:
mages - magefists
rends - steelrends
boots:
ww - waterwalks
treks - sandstorm treks
jewelry:
bk - bul-kathos (usually the ring)

and imo: (things in bold are what i think need to be chaged.)
Wiz - Wizardspike (should be Wizzy, never heard anyone use 'wiz' before)
Arm - Arm of King Leoric or Armor (should not be on the list, or could easliy be confused with arm as in armor, and again never heard this called an arm before)
Andies - Andariels Visage (andy*)
MR - Medium Rune (mid rune*)
TPPK - Town Portal Player Kill (May be teleport and that would make more sense, I'll let someone find this and tell me) not teleport, i can demonstrate it on you if you wish :x
Assn/A - Assassin (Sin*)
WP - Way PointTrist - Tristram (typo )
Cat - Catacombs (cata*)
WSK - Worldstone Keep (ws*)

ib - ice blast/ice bolt
blizz - blizzard
fb - fireball/firebolt
cb - charged bolt
static - static field
tstorm - thunder storm
es - energy shield
hammers - blessed hammers
hs - holy shield/or holy shock i suppose
nado - tornado
oak - oak sage
skellys - skeletons
anc - ancients (rarely used)
grush - glitch rush
trav - travincal
a1 - act 1
a2 - act 2
a3 - act 3
a4 - act 4
a5 - act 5
pp - party please
top2 - used in baal runs, when the top 2 levels make their own party and kill baal alone for more experience.

and that's all i can think of atm.

oh lolz.
atm - at the moment
n1 - nice one
np - no problem