योगेन चित्तस्य पदेन वाचः मलं शरीरस्य च वैद्यकेन ।
योपाकरोत्तं प्रवरं मुनीनां पतंजलिं
प्रांजलिरानतोऽस्मि ॥

Meaning:
With joined hands, I stay bowed to Patanjali-the pereminent among the sages, who removed the impurities of the mind by (explaining) yoga, of the speech by (commenting on) grammar and of the body by (expounding) medicine ויאגרה ללא מרשם כללית.

Word meanings:
योगेन = through yoga or meditation;
चित्तस्य = of the consciousness or mind;
पदेन = through a step or word or leg;
वाचः = of speech;
मल = impurity; dirt; excreta;
शरीरस्य = of the body;
च = and;
वैद्य = the science of medicine;
योपाकरोत् = (yaH) who (apAkarot) removed; repelled;
प्रवर = the chief; the great; the preeminent;
मुनीनां = of the sages;
प्रांजलिः = with joined hands;
आनतोऽस्मि = am (asmi) bowed, prostrated (AnataH);