Wiktionary
labouriously
adv. (alternative form of laboriously English)
Usage examples of "labouriously".
Instead of labouriously building a false identity and cover legend for an existing MI6 officer, why not find somebody outside the service with the right professional and personal qualities, secretly put him through the IONEC under a false name and identity, then post him under his real name to work in his former occupation in the target country?
The little innkeeper labouriously unfastened the great bars, and when the door finally opened there appeared on the threshold Nora Black with Coke and an officer of infantry, Nora's little old companion, and Nora's dragoman.
From a window she could see her father making his way across the campus labouriously against the wind and whirling snow.