to sharpen
verb/ɐmuˈlaɾ/medium
a·mo·lar
Definitions
1To make cutting or sharp by friction against an abrasive surface; to grind.
I need to sharpen this knife before cutting the bread.
The blacksmith sharpens the tools on the grindstone.
Common collocations
to sharpen knivesto sharpen on a stoneto sharpen tools
2(Figurative, informal) To bother, irritate, cause persistent annoyance.
Stop annoying me with those questions!
That constant noise gets on my nerves.
Common collocations
to annoy someoneto get on someone's nerves
Etymology
Do latim 'mola', 'molāre' (moer, desgastar friccionando).