10 letter words:
esterifies13,
8 letter words:
feistier11,
ferities11,
fieriest11,
reefiest11,
7 letter words:
festers10,
frisees10,
reifies10,
resifts10,
sifters10,
strifes10,
eeriest7,
resites7,
6 letter words:
feirie9,
feists9,
fester9,
firsts9,
freest9,
frisee9,
frises9,
frites9,
refits9,
resift9,
rifest9,
serifs9,
sifter9,
strife9,
esters6,
irises6,
reests6,
resees6,
resets6,
resist6,
resite6,
resits6,
reties6,
seiser6,
serest6,
series6,
sirees6,
sister6,
steers6,
steres6,
5 letter words:
feist8,
feres8,
fesse8,
fests8,
fetes8,
fires8,
first8,
fists8,
frees8,
frets8,
fries8,
frise8,
frits8,
reefs8,
refit8,
reifs8,
rifts8,
seifs8,
serfs8,
serif8,
sifts8,
eerie5,
erses5,
ester5,
issei5,
reest5,
resee5,
reset5,
resit5,
rests5,
retie5,
rises5,
rites5,
seers5,
seise5,
seres5,
siree5,
sires5,
sites5,
steer5,
stere5,
sties5,
stirs5,
terse5,
tiers5,
tires5,
trees5,
tress5,
tries5,
4 letter words:
efts7,
fees7,
feet7,
fere7,
fess7,
fest7,
fete7,
fets7,
fire7,
firs7,
fist7,
fits7,
free7,
fret7,
frit7,
reef7,
refs7,
reft7,
reif7,
rife7,
rifs7,
rift7,
seif7,
serf7,
sift7,
tref7,
erst4,
eses4,
ires4,
iris4,
rees4,
reis4,
rest4,
rete4,
rets4,
rise4,
rite4,
seer4,
sees4,
seis4,
sere4,
sers4,
sets4,
sire4,
sirs4,
site4,
sits4,
sris4,
stir4,
tees4,
tier4,
ties4,
tire4,
tree4,
tres4,
3 letter words:
efs6,
eft6,
fee6,
fer6,
fes6,
fet6,
fie6,
fir6,
fit6,
ifs6,
ref6,
rif6,
ere3,
ers3,
ess3,
ire3,
its3,
ree3,
rei3,
res3,
ret3,
see3,
sei3,
ser3,
set3,
sir3,
sis3,
sit3,
sri3,
tee3,
tie3,
tis3,
2 letter words:
ef5,
fe5,
if5,
er2,
es2,
et2,
is2,
it2,
re2,
si2,
ti2,
