English word acumen comes from Proto-Indo-European *h₂ḱ-, and later Latin acus (A needle, a pin. Bodkin.)
| Dictionary entry | Language | Definition |
|---|---|---|
| *h₂ḱ- | Proto-Indo-European (ine-pro) | |
| acus | Latin (lat) | A needle, a pin. Bodkin. |
| acumen | Latin (lat) | A sharpened point. |
| acumen | English (eng) | (anatomy) A bony, often sharp, protuberance, especially that of the ischium.. (botany) A sharp, tapering point extending from a plant.. Quickness of perception or discernment; penetration of mind; the faculty of nice discrimination. |