Acuminate

Acuminate: ending in a sharp point. Look for this word in Botany books.  Acuminate leaves are leaves that get to the point.    Acuminate comes from the Latin verb acuminare (to sharpen to a point).  It is related to the Latin word for needle,...

Acumen

Acumen – a sharp point; and, figuratively, quickness of perception; keenness, shrewdness.  For Example: Einstein’s powerful acumen revealed many secrets of the universe. Acumen derives from the Latin word for needle, acus.