Possible meaning is “Star of life”. Or “Of Stars” or simply “Starry”. First part of the name may refer to the verb life or to live, or the “of” like “made of” second part is simply the word star. Ishtar was identified with the planet Venus, that was in ancient times considered a star. The Greeks later adopted the Goddess Ishtar and worshipped her as Aphrodite, also here identified with the planet Venus.
ISHTAR is also related to the main constellation of the maiden VIRGO, but also on the cusp with LIBRA. There is the Autumn Equinox. The archetypal story of her initiatory descent to and return from the Underworld may relate to Winter, then Spring renewal. It may also refer to the movement cycles of the planet Venus. As a goddess she is attributed with Love, Fertility, Healing (Virgo) and Justice/War (Libra). Related Cusp personalities often emphasize this spectrum of traits.The 7 gates of her journey relate to the 7 main chakras in certain paradigms... whether the versions heroize her or vilify her intentions. And the chakra map relates to the mystical kabbalah Tree of Life in Dr Carolyn Myss "Anatomy of the Spirit." The mythology has universal applications and implications in that sense.
Despite what a previous comment said, the name Ishtar is of Babylonian/Assyrian origin, it has not any Egyptian origin at all, although the idea of having a goddess of fertility did spread throughout surrounding countries in time.The reason so many metal-bands have taken to the name Ishtar is probably because the goddess was transformed into a demon in the Old Testament. The political reasons for this might be debated, but Ishtar is not a demon at all but a godess worshipped by the Assyrians in the same way as Aphrodite was worshipped by the Greeks. There is nothing demonic about the nature of Ishtar, despite what the Old Testament says.Thus, a lot of Assyrians still name their daughters Ishtar, with the thought of the name's characteristics being powerful yet loving. The "demonization" of it is something that isn't recognized in the Middle East today at all, it is something purely Western and it is quite frankly really sad that the vast majority of the world doesn't come in contact with this lovely name in any other way than through violent video games (e.g. "Ashtaroth") or hardcore music. Especially considering it's history of being one of the most important gods to the world's first civilization.
Ishtar was identified with the planet Venus, that was in ancient times considered a star. The Greeks later adopted the Goddess Ishtar and worshipped her as Aphrodite, also here identified with the planet Venus.