incidentally; while doing something else

take the opportunity to do, on the occasion of, while being at it

mumblingly

(onomatopoeia) Representing gentle laughter.

strengthens the prefixed adjective or adjectival noun

one who does the previous word's action: -ist, -er / (board games) counter for moves in shogi, go, etc.

hand / handicraft, skill, talent / one who does an action: -ist, -er / handwork

(childish) Alternative spelling of おてて (“hand”)

to hold in one's hand / to obtain

hand