Concentrate
mid 17th century (in the sense ‘bring towards a centre’): Latinized form of concentre, or from French concentrer ‘to concentrate’. concentrate (sense 1 of the verb) dates from the early 20th century.
wiktionary
From French concentrer.
etymonline
concentrate (v.)
1630s, "to bring or come to a common center," from concenter (1590s), from Italian concentrare, from assimilated form of Latin com "with, together" (see con-) + centrum "center" (see center (n.)).
Meaning "condense" is from 1680s; that of "intensify the action of" is from 1758. Sense of "mentally focus" is from 1860s, on the notion of "concentrate the mind or mental powers." Related: Concentrated; concentrating.
concentrate (n.)
"that which has been reduced to a state of purity," 1883, from concentrate(adj.) "reduced to a pure or intense state" (1640s), from concentrate (v.).
