Acholi
Acholi (Lwo), a Nilo-Saharan language spoken in northern Uganda and southern Sudan. The Acholi are part of the Luo speaking Nilotic peoples who moved into Uganda from Southern Sudan between 1400-1800 AD. Acholi is a language primarily spoken by the Acholi people in the districts of Gulu, Kitgum, and Pader, a region known as Acholil and in northern Uganda. You can practice Acholi using common phrases in Omniglot.
Afar
Afar is spoken by the Afar people inhabiting Djibouti, Eritrea, and Ethiopia and is thought to have more than 1.4 million speakers. Afar people have traditionally practiced Islam. They are nomadic, so the language may be spoken beyond those three countries. Afar language courses are available in French and you can play Afar language games here.
Afrikaan
Afrikaans, also known as the Cape Dutch, belongs to the West Germanic branch of the Indo-European language family. It is spoken by 6.9 million people as a first and by 10.3 million people as a second language in South Africa. Afrikaans is also spoken in Botswana, Lesotho, Malawi, Namibia, Swaziland, and Zambia. Click here to learn more about the sound system and basic grammar information of the Afrikaans language.
Albanian
Albanian (also known as Shqip), forms a branch of the Indo-European language family all by itself. It is spoken by 7.3 million people in Albania, Kosovo, Macedonia, Montenegro, Bulgaria, Czech Republic, Greece, Turkey, and by immigrant communities worldwide. Albanian was finally proven to be an Indo-European language only in 185y by a German philologist Franz Bopp. The unified literary language is used in Albania and Yugoslavia only since 1972. The alphabet has 36 letters, 29 consonants and 7 vowels. There two main dialects in the North and South Albania. You can learn the basics of the Albanian language using the U.S. Peace Corps Albanian 101 course.
Amharic
Amharic is one of the ninety languages that are spoken in Ethiopia. More than 17 million people speak Amharic in Ethiopia. According amharic.com "the history of Amharic language traces back to the 1st millennium B.C. to the days of King Solomon and the Queen of Sheba. Historians explain that immigrants from southwestern Arabia crossed the Red Sea into present-day Eritrea and mixed with the Cushitic population." The writing system has 33 basic characters with each having 7 forms for each consonant-vowel combination. Unlike Arabic, Hebrew, or Syrian, Amharic is written from left to right. Practice Amharic using Audio and Textbook developed by the Foreign Service Institute.
Ancient Greek
Classical Greek Online - 10 lessons developed by The UT-Austin Linguistics Research Center. Complete Course in Ancient Greek - Remarks preliminary to an ancient Greek course based on Clyde Pharr, Homeric Greek: A Book for Beginners. Both Pharr Homeric Greek and Smyth Greek Grammar on PDF for free download. Introduction to Homeric Greek - YouTube channel created by The Center for Hellenic Studies, at Harvard University. Learn Ancient Greek - Leonard Muellner (Professor Emeritus of Classical Studies at Brandeis University) and Belisi Gillespie present all the contents covered in two semesters of a college-level Introduction to Ancient Greek course. 64 video lessons.