adverb, adverb taking the 'to' particle, taru-adjective
Describes acting in a scared, hesitant, or overly cautious manner. Often used with する or と.
He entered the room fearfully.
I waited nervously for the result.
Standard kanji spelling with iteration mark.
Variant without iteration mark; less common but still used.
Kana spelling is sometimes used, especially in casual writing.
Reduplication of 恐 (きょう, 'fear'), forming an adverb expressing a fearful state. The exact historical derivation is uncertain.