at one's fingers' ends

English

Prepositional phrase

at one's fingers' ends

1. Synonym of at one's fingertips
   • 1859, Charles Dickens, A Tale of Two Cities, London: Chapman and Hall, […], →OCLC:

     The more business he got, the greater his power seemed to grow of getting at its pith and marrow; and however late at night he sat carousing with Sydney Carton, he always had his points at his fingers' ends in the morning.