Definition of runtishly in US English:

runtishly

adverb

rare
  • In the manner of a runt or something small of its kind.

Origin

Mid 18th century; earliest use found in John Moore (d. 1737), Church of England clergyman and author. From runtish + -ly.

Pronunciation

runtishly

/ˈrʌntɪʃli/