desirablyadv.

/dɪˈzʌɪərəbli/Etymology: formed as desirable adj. + -ly suffix2.
the mind > will > wish or inclination > desire > [adverb] > desirably
1823 J. Badcock 70 The ground where you would most desirably dig a well.
This entry has not yet been fully updated (first published 1895; most recently modified version published online March 2018).