Nattily rhymes with:
natalie, nathalie, atalie, natalie, nathalie, philately, accidentally, anecdotally, atalie, brutally, coincidentally, continentally, digitally, environmentally, experimentally, fatally, fundamentally, governmentally, hastily, heartily, horizontally, incidentally, incrementally, italy, jauntily, mentally, mightily, monumentally, mortally, natalie, nathalie, ornamentally, ottilie, philately, scantily, subtly, temperamentally, testily, totally, vitally, wittily
Nattily sounds like:
nadal, nadel, nadell, natal, natala, natale, natali, natalia, natalie, natalle, nathalia, nathalie, natoli, neatly, nedel, needle, neidl, neonatal, nettle, new-delhi, nidal, nodule, noodle, nutley, nuttall, nuttle