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Etymology (/ ˌ ɛ t ɪ ˈ m ɒ l ə dʒ i /, ET-im-OL-ə-jee [1]) is the study of the origin and evolution of words—including their constituent units of sound and meaning—across time. [2] In the 21st century a subfield within linguistics, etymology has become a more rigorously scientific study. [1]
The word evolution (from the Latin evolutio, meaning "to unroll like a scroll") was initially used to refer to embryological development; its first use in relation to development of species came in 1762, when Charles Bonnet used it for his concept of "pre-formation," in which females carried a miniature form of all future generations. The term ...
The theory was first set out in detail in Darwin's book On the Origin of Species. [6] Evolution by natural selection is established by observable facts about living organisms: (1) more offspring are often produced than can possibly survive; (2) traits vary among individuals with respect to their morphology, physiology, and behaviour; (3 ...
The highly diverse Nilo-Saharan languages, first proposed as a family by Joseph Greenberg in 1963 might have originated in the Upper Paleolithic. [1] Given the presence of a tripartite number system in modern Nilo-Saharan languages, linguist N.A. Blench inferred a noun classifier in the proto-language, distributed based on water courses in the Sahara during the "wet period" of the Neolithic ...
Before its use to describe biological evolution, the term "evolution" was originally used to refer to any orderly sequence of events with the outcome somehow contained at the start. [7] The first five editions of Darwin's in Origin of Species used the word "evolved", but the word "evolution" was only used in its sixth edition in 1872. [8]
Professor of biology Jerry Coyne sums up biological evolution succinctly: [3]. Life on Earth evolved gradually beginning with one primitive species – perhaps a self-replicating molecule – that lived more than 3.5 billion years ago; it then branched out over time, throwing off many new and diverse species; and the mechanism for most (but not all) of evolutionary change is natural selection.
Cónyuge, for example, comes from the Latin root meaning 'to join', so its origin had nothing to do with the word 'woman'; chica is related to a Latin word meaning 'insignificant thing'; cana comes from the Latin word for 'white', and again shows a history unrelated to the word for 'woman'. [22]
Darwin published his theory of evolution by natural selection in On the Origin of Species in 1859. [18] His theory means that all life, including humanity, is a product of continuing natural processes. The implication that all life on Earth has a common ancestor has been met with objections from some religious groups.