n. 1 (in the UK) a coin and monetary unit formerly worth a quarter of an old penny. °Withdrawn in 1961. 2 the least possible amount (it doesn't matter a farthing).
[ OE feorthing f. feortha fourth ]
FARTHING
Meaning of FARTHING in English
Concise Oxford English dictionary. Краткий оксфордский словарь английского языка. 2012