Egyptian lawmakers voted overwhelmingly on Thursday to extend term limits for President Abdel-Fattah el-Sissi until 2034, part of a package of constitutional amendments also set to further enshrine the military's role in politics that will now face a national referendum.

Egypt's Parliament meets to deliberate over constitutional amendments that could allow President Abdel-Fattah el-Sissi to stay in office till 2034, in Cairo Egypt, Wednesday, Feb 13, 2019. (Photo: AP)

Of the 596-seat Parliament, 485 lawmakers backed the amendments, which could see the former general ruling for the length of four US presidential terms, in addition to the nearly five years he's already spent in office.

Critics of the move argue that Egypt is slipping back into authoritarianism, eight years after a pro-democracy uprising ended autocrat Hosni Mubarak's three-decade rule, and nearly six years after el-Sissi led a popular military overthrow of the country's first freely elected but divisive Islamist president, Mohammed Morsi, after protests against his rule.

With Parliament and state institutions packed with fervent el-Sissi supporters, the amendments focusing on him are almost certain to survive any scrutiny, allowing the general-turned president 12 more years of potential rule after his second term expires in 2022.

Parliament Speaker Ali Abdel-Al said the motion would now be discussed by the Constitutional and Legislative Affairs Committee for 60 days before returning to Parliament for a final vote followed by the referendum, likely to take place before early May, the start of Ramadan.

Thursday's vote followed three rounds of discussions among representative lawmakers that started the previous day. Very few opposed openly the amendments focusing on el-Sissi or the military. Abdel-Al's statement mentioned neither specifically.

Since taking office, el-Sissi has led an unprecedented crackdown on dissent, opposition and civil liberties, justifying his unique leadership as necessary to bring stability and economic growth.

In general terms, the amendments only extend a president's term in office from four to six years. But they include a special article that only applies to el-Sissi and allows him to run two more times for six-year terms — possibly having his rule end up bridging three decades.

The amendments also include clauses allowing the president to appoint top judges and bypass judiciary oversight in vetting draft legislation before it is voted into law. They declare the country's military "guardian and protector" of the Egyptian state, democracy and the constitution, while also granting military courts wider jurisdiction in trying civilians.