French word siffloter comes from French -oter, French siffler

Detailed word origin of siffloter

Dictionary entry	Language	Definition
-oter	French (fra)	(colloquial) Forming verbs from other verbs, with a diminutive or frequentative sense.
siffler	French (fra)	(intransitive, of snakes) to hiss. (transitive) to boo by whistling (to show one's disapproval at something). (transitive) to knock back (a drink), to down. (transitive) to whistle for, to blow on a whistle for. (transitive, intransitive) to whistle.
siffloter	French (fra)	(intransitive) to whistle (carelessly).

Words with the same origin as siffloter