Italian

Adverb

arduamente

1. arduously
2. difficultly (of a problem)
3. steeply (of a slope)

Portuguese

Adverb

arduamente (comparative mais arduamente superlative o mais arduamente)

1. arduously (in an arduous manner)

Spanish

Etymology

From arduo +‎ -mente.

Adverb

arduamente

1. arduously, difficultly