As adverbs the difference between tendrely and tenderly
is that tendrely is while tenderly is in a tender manner; gently; sweetly.
tenderly
English
Adverb
(
en adverb)
In a tender manner; gently; sweetly.
{{quote-Fanny Hill, part=4
, and the hour striking at which I was oblig'd to dispatch my young man, I
tenderly advised him of the necessity there was for parting}}