lengthily
time out of mind
grip
donkey's
blue moon
age
ages
aeon
prolongedly
eon
long ass
light year
longways
lengthy
coon's age
years
crow's age
forever
lifetime
hot minute
until the cows come home
until the cows freeze over
long as one's arm
overlong
hyperextended
far
long-span
month of Sundays
eternity
abiding
imperishable
enduring
long time
superlong
ultralong
longsomely
donkey's years
yonks
forever and a day
donkey's ears
as long as
inveterately
lengthsome
sesquipedalian
at length
stretch
long
longirostrate
no end
period
dog's age
any more
sesquipedalianism
mecocephalic
long-pending
extralong
intercalary
long-drawn
long-drawn-out
longwise
perdurable
undestroyable
dolicho-
deep
time immemorial
long run
indestructible
durable
macro-
yoinks
time-consumingly
geographically challenged
long-range
for the long haul
advanced
longform
ripe
go long
overquickly
with ages
indefinitely
montante
long haul
old-line
longitudinal
anciently
country mile
eudemic
long-distance
cycle
prolonged