adverb taking the 'to' particle, adverb
Describes a state of doing nothing productive, moving slowly, or lacking purpose. Often used with と (to) as an adverb. Rare and literary; not common in everyday speech.
He spends the whole day idly.
His sluggish attitude incurred his boss's displeasure.
Variant using the repetition mark 々; equally rare and literary.
Compound of 便便 (benben, 'idle, at ease') and だらり (darari, 'loosely, languidly'). The exact historical derivation is uncertain, but it is a literary reduplicative phrase.