We found one dictionary that defines the word in an arch manner:

General (1 matching dictionary)

1. in an arch manner: Rhymezone

Definitions from WordNet (in an arch manner) ▸ adverb:  with playful slyness or roguishness Opposite: straight, direct, blunt, straightforward ▸ Words similar to in an arch manner ▸ Usage examples for in an arch manner ▸ Idioms related to in an arch manner ▸ Wikipedia articles (New!) ▸ Words that often appear near in an arch manner ▸ Rhymes of in an arch manner ▸ Invented words related to in an arch manner