There are slightly better citations at: https://en.wikipedia.org/wiki/Indefinite_and_fictitious_numbers#cite_note-4 https://en.wikipedia.org/wiki/Indefinite_and

There are slightly better citations at: https://en.wikipedia.org/wiki/Indefinite_and_fictitious_numbers#cite_note-4 https://en.wikipedia.org/wiki/Indefinite_and_fictitious_numb... The Concise Oxford Turkish Dictionary, Oxford, 1959, s.v. kırk: "Forty; used especially to denote a large indefinite number