siffler

Etymology
(later orthographically influenced by ), from, probably an Osco-Umbrian influenced variant of (compare 🇨🇬, 🇨🇬). Cf. also the variant northern Old French dialectal form (whence Norman  and Walloon ), from a Vulgar Latin variant  (compare 🇨🇬), as well as the dialectal  from a form  (compare 🇨🇬, 🇨🇬, 🇨🇬); in areas transitional to Franco-Provençal dialects is found the form  (compare also 🇨🇬,, 🇨🇬).

Verb

 * 1)  to whistle
 * 2)  to whistle for, to blow on a whistle for
 * 3)  to boo by whistling (to show one's disapproval at something)
 * 4)  to hiss
 * 5)  to knock back (a drink), to down
 * 1)  to hiss
 * 2)  to knock back (a drink), to down