The Etymology of Evolve
Evolve originally described unrolling a scroll. Latin evolvere combined ex- ('out') with volvere ('to roll'), and for a Roman reader, to evolve a text was to physically unroll the papyrus roll to read it. English borrowed the word in the 1640s with the general sense of 'unfolding' or 'developing over time,' but it remained a fairly obscure term. The biological revolution came in the 19th century, when scientists needed vocabulary for species change. Curiously, Charles Darwin was reluctant to use evolve — he felt it carried connotations of progress and predetermined direction that contradicted his theory of undirected natural selection. On the Origin of Species (1859) uses 'evolved' exactly once, in its final sentence. It was Herbert Spencer who championed 'evolution' as the standard term for biological change. Latin volvere was a prolific root: revolve, involve, volume (originally a rolled scroll), and vault all descend from the same rolling motion that gave us evolve.