Gattis rhymes with:
battis, fratus, mattis, matus, pattis, altice, anstice, anstiss, artis, arvanitis, aseritis, atlantis, atlantis', battis, bettis, botrytis, burtis, clematis, courtis, curtice, curtis', curtiss, custis, debenedictis, delaurentis, derobertis, desanctis, desantis, devincentis, disantis, duplantis, estis, eustice, fortis, fotis, fratus, gettis, gottis, hartis, huestis, injustice, intis, justis, kariotis, kasputys, kurtis, lamastus, lantis, lettice, loftis, logothetis, maldutis, maniatis, mantis, martis, matis, mattice, mattis, matus, mazaitis, mertice, metis, moraitis, mortis, myrtice, myrtis, notis, oatis, ortis, otis, pattis, peratis, peratis', petraitis, pettis, phlebitis, pneumocystis, politis, portis, prentice, prentiss, sholtis, shultis, solstice, soltis, veliotis, whitis, yantis
Gattis sounds like:
gaddis, gads, gaetz, gaskets, gatch, gates, gates', gates's, gateway's, gateways, gatos, gattuso, gatwick, gatx, gatz, gatza, gatzke, gaudioso, gaydos, gaydosh, gazdik, geddes, geddis, geitz, geodesic, geodesy, geotaxis, geotek, getaways, gets, gettis, getts, getty's, gettys, getz, ghattas, ghettoize, ghettos, ghitis, ghosts, gidwitz, gigot's, gittis, giudice, giudici, goat's, goates, goats, god's, goddess, goddesses, godek, godot's, gods, godsey, goedecke, goetsch, goettsch, goetz, goetze, goetzke, good's, goodies, goods, goody's, gotaas, gotch, gotcha, gothic, gotsch, gottis, gotts, gottsch, gotz, gtech, gtech's, guest's, guesthouse, guesthouses, guests, guests', guide's, guides, guidice, gusts, gustus, gutkowski, gutowski, guts, gutsy, gutwaks, gwozdz