Derryjellybies

• dirigible: blimps, airships; balloons that can be steered

• Sl derry: an eye-glass; an alarm; a hue-and-cry → the term is thought to be derived from Derry Down Triangle, a nickname for Robert Stewart, Viscount Castlereagh, MP for County Down (1790), Irish Secretary (1797), Foreign Secretary (1812), 2nd Marquess of Londonderry (1821)

• djellaba: an Arabic cloak with a hood and wide sleeves → 005.35 mecklenburk

• Derry: city and county in Ulster → Matthew Gregory, the first of the Four Old Men (×), lives in Ulster
  • Third Census of Finnegans Wake

• Mrs Jellyby: a character in Charles Dickens's novel Bleak House; an enthusiastic, unthinking philanthropist who forgets that charity should begin at home