rillet

• ryllet [16th century]

From rill (“brook, rivulet, small stream”) + either -et or -let.

• enPR: rĭʹlĭt, IPA^(key): /ˈɹɪlɪt/

rillet (plural rillets)

1. A little rill.
   • 1830 June, Alfred Tennyson, “Recollections of the Arabian Nights”, in Poems. […], volume I, London: Edward Moxon, […], published 1842, →OCLC, part V, page 25:

     From the green rivage many a fall / Of diamond rillets musical, […]

   • 1953, Isaac Asimov, Second Foundation (1971 Panther Books publication), part II: “Search by the Foundation”, chapter 8: ‘Seldon’s Plan’, page 86, ¶ 1

     First, a pearly white, unrelieved, then a trace of faint darkness here and there, and finally, the fine neatly printed equations in black, with an occasional red hairline that wavered through the darker forest like a staggering rillet.

• Tiller, retill, tiller