It is: 1 per cent of a year because 1/100 = 1%
100 Root of the word is Cent which means 100
century centenary centennial
Century, centennial, centenary
About 3 cent. a year About 3 cent. a year About 3 cent. a year About 3 cent. a year
Mil can be the old fashioned word for mille (a thousand) especially in dates L'an mil neuf cent = Mille neuf cent = the year 1900 or mil can be the millet (cereal)
Latin. ' Anno' means 'year. as in 'per annum' (each year)
Biannual means twice every year.
Centenary means the 100th anniversay, which would be the 100th year.
year
It is the Latin word for "year". A salary of $75,000 per annum is $75,000 per year.
Most lithospheric plates move about 2 to 10 centimeters per year, roughly as fast as human fingernails grow.
While not specifically "by year", chronological means "in order of occurrence in time"