Definition of longly in US English:

longly

adverb

non-standard
  • 1For a long time; = "long".

  • 2With reference to speech or writing: at considerable length; using many words; elaborately, in detail.

  • 3With reference to spatial extent: to a considerable or specified length.

Origin

Old English. From long + -ly. Compare long.

Pronunciation

longly

/ˈlɒŋli/