What is the meaning of Langur?

Any of the Old World monkeys of the genera Simias, Trachypithecus (lutungs), Presbytis (surilis), and Semnopithecus (gray langurs).

A gibbon of the genus Hoolock.

langur (Old World monkey)

long

long (of distance or time or the length of an object)

tall

only used in set phrases

languor (weakness due to illness)

langur

Source: wiktionary.org