When John Henry Newman wrote "Lead, Kindly Light" at sea on June 16 1933, he didn't mispunctuate, intending "Lead Kindly, Light". How can one say this with confidence 180 years later? Very simply, because we know that Newman would never had been guilty of such a syntactical faux pas. Instead, he would have had to write "Lead Kindlily, Light", sacrificing sound to sense.
Henrick, John J.
"Pick Your "-lily" Adverbs With Care,"
Word Ways: Vol. 36
, Article 23.
Available at: http://digitalcommons.butler.edu/wordways/vol36/iss4/23