Sentence:  Polyſyllables having their Penultima long by poſition are <WSD>acuted</WSD>; as "Camíllus": but having it long by nature and the last ſhort, they are circumflected; as, "Românus", "amâre": except the Compounds of "ſit", whose Ultima is <WSD>acuted</WSD>; as "Malefít", "calefít", "benefít", "ſatisfít". 
Meaning of the word marked with <WSD> tags:  To give an acute sound to.