Turkey's lira hit its firmest in 2-1/2 months against the dollar on Sunday, after partial election results showed a likely return to single-party rule for the AK Party, ending months of investor uncertainty.The Turkish lira touched 2.82 to the dollar in low-volume trade on Sunday, from Friday's close of 2.9135. It was the strongest level since mid-August.The Justice and Development (AK) Party clinched victory after securing nearly 50 percent of votes in Turkey's 26th general election Sunday, restoring a majority government with a landslide victory.