hopefully
https://gyazo.com/4fab3f617390b9ad6eb5f400f2f73130
/icons/point.icon 可能性を表す副詞
adverb
望みをかけて, 希望［期待］を持って
e.g. he rode on hopefully.
2. sentence adverb it is to be hoped that:
〖文修飾〗願わくば, うまくいけば(!コーパスこの用法を認めない立場もあるが一般的に用いられる)
e.g. hopefully, it should be finished by next year.
USAGE
The traditional sense of hopefully, ‘in a hopeful manner,’ has been used since the 17th century. In the second half of the 20th century a new use as a sentence adverb became established, meaning ‘it is to be hoped that,’ as in hopefully, we'll see you tomorrow. This second use is now much more common than the first use, but it is still believed by some people to be incorrect. Why should this be? People do not criticize other sentence adverbs, e.g. sadly (as in sadly, her father died last year) or fortunately (as in fortunately, he recovered). Part of the reason is that hopefully is a rather odd sentence adverb: while many others, such as sadly, regrettably, and clearly, may be paraphrased as ‘it is sad/regrettable/clear that …’, this is not possible with hopefully. Nevertheless, it is clear that use of hopefully has become a shibboleth of ‘correctness’ in the language—even if the arguments on which this is based are not particularly strong—and it is wise to be aware of this in formal contexts. See also usage at sentence adverb and thankfully.