Letters that make nightly
g, l, n, h, t, i, y are letters that make 'nightly'
knightly is a word created by adding a letter to 'nightly'
2 possible definitions for 'nightly'
Under this definition, nightly is an adjective and has the following properties:
every night has the same meaning as nightly
"she checks on her roses nightly"
Under this definition, nightly is an adjective and has the following properties:
periodic, periodical are similar to 'nightly'.
"nightly television now goes on until 3:00 or 4:00 a.m."