Additionally means as a further point. Additionally, we found, additionally funded, additionally required.
It is a formal connector and belongs to reports rather than to speech, where and or also does the same work more lightly. Starting a sentence with it warns the reader that a list is under way.
1adverbadditionallyAs a further point.
“The hotel is close to the beach; additionally, breakfast is included in the price.”
additionally is a connector.
Latin
additionalis
English
additional
English, today
additionally
From additional + -ly. additional Learned borrowing from Latin additionalis.
Etymology from Wiktionary, CC BY-SA