Webster's Revised Unabridged Dictionary · 1913

Truly

Truly , adverb

[From True.]

1.
In a true manner; according to truth; in agreement with fact; as, to state things truly; the facts are truly represented.
I can not truly say how I came here. — Shakespeare
2.
Exactly; justly; precisely; accurately; as, to estimate truly the weight of evidence.
3.
Sincerely; honestly; really; faithfully; as, to be truly attached to a lover; the citizens are truly loyal to their prince or their country. — Burke
4.
Conformably to law; legally; legitimately.
His innocent babe [is] truly begotten. — Shakespeare
5.
In fact; in deed; in reality; in truth.
Beauty is excelled by manly grace And wisdom, which alone is truly fair. — Milton