Faithfully
What it means
Meaning 1
With steady loyalty or reliable observance of a commitment.
Reach for it when crediting someone for continuing a duty or bond over time
Omar faithfully checked the flood marker every morning for twelve years.
Meaning 2
With close accuracy to an original, instruction, or reality.
Reach for it when describing a reproduction that preserves essential details
The new edition faithfully reproduces the illustrator's muted colors.