Firmly in Malayalam

Malayalam words whose English meaning includes “firmly”:

ഉറപ്പായി (urappaayi) — Surely, securely, firmly.
നിലകൊള്ളുക (nilakolluka) — Remain, stand for, hold on to a position firmly, work steadfastly.
പ്രതിഷ്ഠിക്കുക (prathishtikkuka) — Found, install, establish, place firmly.