- concentrate (v.)
[concentrate 词源字典]
- 1630s, "to bring or come to a common center," from concenter (1590s), from Italian concentrare, from Latin com- "together" (see com-) + centrum "center" (see center (n.)). Meaning "condense" is from 1680s. Sense of "mentally focus" is c. 1860. Related: Concentrated; concentrating.[concentrate etymology, concentrate origin, 英语词源]
- concentrate (n.)
- 1883, from concentrate (v.).