The twenty-second century comprises the years 2101-2200. This is different from the century known as the twenty-one hundreds, which comprises the years 2100-2199.
... + i
long r^i = r + ii or r + uu, depending on the region
l^i = l + r^i
(Sanskrit recognizes vocalic r (errr) and l (ulll), unlike, say, English)
Diphthongs ...