Arabestan(Region & Country)Persian From Persian عرب (ʿarab) meaning "Arab" combined with the suffix ستان (stān) meaning "land of". This is the Persian name for both the Arabian Peninsula and the country of Saudi Arabia (alongside the fuller form عربستان سعودی (ʿArabestān e-Saʿūdī)).
Kazakhstan(Country)English, Russian, Ukrainian, French From Kazakh Қазақстан (Qazaqstan), from the ethnic name қазақ (qazaq), which is probably of Turkic origin, combined with the Persian suffix ستان (stān) meaning "land of". This is the name of a country in central Asia.
Kyrgyzstan(Country)Kyrgyz, English From Kyrgyz Кыргызстан (Kyrgyzstan), a combination of the name of the Kyrgyz people and the Persian suffix ستان (stān) meaning "land of". The ethnic name may be derived from the Turkic word kyrk meaning "forty". This is the name of a country in central Asia.
Tajikistan(Country)English, Urdu, Hindi, Arabic, Indonesian, Malay, Tagalog From Tajik Тоҷикистон (Tojikiston), which is derived from the name of the Tajik people combined with the Persian suffix ستان (stān) meaning "land of". The ethnic name is of debated origin, but it is generally believed to be from Persian تازیک (tāzīk) meaning "Arab". This is the name of a country in central Asia.
Uzbekistan(Country)English, Russian, Slovak, Serbian, Croatian, Bulgarian, Swedish From Uzbek O'zbekiston, derived from the ethnic name O'zbek (which is probably in part from Turkic beg meaning "chieftain, master") combined with the Persian suffix ستان (stān) meaning "land of". This is the name of a country in central Asia.