1610s, "whole number of inhabitants in a country, state, county, town, etc," from Late Latin populationem (nominative populatio) "a people; a multitude," as if from Latin populus "a people" (see people (n.)). From 1776 as "act or process of peopling" (a country, etc.). Population explosion "rapid or sudden increase in the size of a population" is attested by 1953.
"of or characteristic of the lower class or the common people," 1560s in a Roman historical sense, from Latin plebeius "belonging to the plebs," earlier plebes, "the populace, the common people" (as opposed to patricians, etc.), also "commonality; the mass, the multitude; the lower class" (from PIE *ple-, from root *pele- (1) "to fill"). In general (non-historical) use from 1580s.
"inflammation of the membrane surrounding the lungs," late 14c., pleoresi, from Old French pleurisie (13c., Modern French pleurésie) and directly from Late Latin pleurisis "pleurisy," alteration of Latin pleuritis "pain in the side," from Greek pleuritis, from pleura "side of the body, rib," a word of unknown origin. Spelling altered in Late Latin on model of Latin stem plur- "more" (as in Medieval Latin pluritas "multitude"), as if in reference to "excess of humors." Related: Pleuritic.
We teach the population at the cheapest possible rate; and the aim all the democratization (if we may use the word) of literature proposes to itself in this country, is to store the minds of the many, of the anonymous multitude, with a large portion of valuable, because practically useful, facts. [Meliora, vol. ii, no. 6, 1860]
1560s, "large group of persons, multitude," from crowd (v.). The earlier word was press (n.). Crowd (n.) was used earlier in the now-archaic sense of "act of pressing or shoving" (c. 1300). From 1650s as "any group or company of persons contemplated in a mass." Crowd-pleaser is by 1924; crowd-control is by 1915; crowd-surf (v.) is by 1995; crowdsourcing (n.) is from 2006.
late 14c., "solemn rite or ceremony," from Old French celebrité "celebration" or directly from Latin celibritatem (nominative celebritas) "multitude, fame," from celeber "frequented, populous" (see celebrate). Meaning "condition of being famous" is from c. 1600; that of "a famous person" is from 1849.
When the old gods withdraw, the empty thrones cry out for a successor, and with good management, or even without management, almost any perishable bag of bones may be hoisted into the vacant seat. [E.R. Dodds, "The Greeks and the Irrational"]