trefle
Tre"fle, n. Etym: [F. tréfle. See Trefoil.] (Fort.) Defn: A species of time; -- so called from its resemblance in form to a trefoil. Tré`flé", a. Etym: [F. tréflé. See Trefoil.] (Her.) Defn: Having a three-lobed extremity or extremities, as a cross; also, more rarely, ornamented with trefoils projecting from the edges, as a bearing.