L
Sexagesima
abundant year
academic year
annum
bissextile year
boxcar
boxcars
calendar month
calendar year
century
common year
day
decade
decennary
decennium
defective year
dozen
duodecimo
eighty
eleven
fifteen
fifty
fiscal year
five and twenty
forty
four and twenty
fourscore
fourscore and ten
fourteen
half a hundred
halfmonth
hour
leap year
long dozen
lunar month
lunar year
lunation
luster
lustrum
man-hour
microsecond
millennium
millisecond
minute
moment
month
moon
ninety
nonagenarian
period
period of time
time period
half-hour
week