to make a rushing, rustling, or murmuring sound: the wind soughing in the meadow.
2.
Scot. and North England. to speak, especially to preach, in a whining, singsong voice.
noun
3.
a sighing, rustling, or murmuring sound.
4.
Scot. and North England.
a.
a sigh or deep breath.
b.
a whining, singsong manner of speaking.
c.
a rumor; unconfirmed report.
Origin: before 900; (v.) Middle Englishswoghen,Old Englishswōgan to make a noise; cognate with Old Saxonswōgan,Old Englishswēgan,Gothic-swōgjan; (noun) Middle Englishswow,swo(u)gh, derivative of the v.
"to make a moaning or murmuring sound," O.E. swogan, from P.Gmc. *swoganan (cf. O.S. swogan "to rustle," Goth. gaswogjan "to sigh"), from PIE imitative base *(s)wagh- (cf. Gk. echo). The noun is c.1381, from the verb.