Indo-European copula copula (with corresponding voiceless and voiced fricatives) existed side by side in Germanic, and the involvement of a separate root "" is unnecessary. The root "*(s)teh-" meant "to stand". From this root comes the present stem of the so-called "substantive verb" in Irish and Scottish Gaelic, "tá" and "tha" respectively. On the absence of the initial s- in Celtic, see Indo-European s-mobile. In Latin, "stō, stare" retained the meaning "to stand", until local forms of Vulgar Latin began to use it as a copula in certain circumstances. Today, this survives in that several Romance languages (Galician-Portuguese, Spanish, Catalan) use it
Indo-European migrations Abdu-Heba, lord of Jerusalem has a Hurrian name. The Iranian peoples (also known as Iranic peoples) are an Indo-European ethno-linguistic group that comprise the speakers of Iranian languages. Their historical areas of settlement were on the Iranian plateau (mainly Iran, Azerbaijan and Afghanistan) and certain neighbouring areas of Asia (such as parts of the Caucasus, Eastern Turkey, Northeast Syria, Uzbekistan, Tajikistan, Bahrain, Oman, northern Iraq, Northwestern and Western Pakistan) reflecting changing geopolitical range of the Persian empires and the Iranian history. The Medes, Parthians and Persians begin to appear on the western Iranian plateau from c. 800 BCE, after which