Illarion is a Russian male name, the Russian form of Ancient Roman Hilarius meaning “cheerful happy” via Ancient Greek hilarosἱλᾰρός (cheerful, merry, glad)< hilaos (gracious; kind) which ultimately derives from a PIE root word.
Ivor is a male given name, the English (British) form of Old Norse Ívarr, made up of Old Norse elements yr (yew “tree”) and arr (warrior) so the name would essentially meaning “yew warrior”. I’ve also seen the first element related to the meaning “bow”; since bows were made out of yew it’s possible that a secondary meaning arose out of it, and that the name Ívarr might have originally referred to an archer. The name was originally brought to English by Scandinavian settlers during the Middle Ages and later spread throughout Ireland, Scotland, and Wales.
Meaning: “yew + warrior”, possibly in reference to an archer or someone who used a longbow
Ixchel is the name of the Mayan goddess of the earth, the moon, and medicine in Maya mythology, as well as midwifery. Though the origin of the name is uncertain it has often been linked to Yucatec Mayan cheel meaning “rainbow” or “lady rainbow”
Ibrahim is the Arabic form of Abraham, the name of an important figure in Christianity, Judaism, and Islam. Abraham’s name was originally Abram meaning “high father” but was changed by God to Abraham meaning “father of many”, to reflect that the than childless Abraham and his wife Sarai (whose name was also changed to Sarah) would have a son long past their childbearing age, Isaac, from whom the Hebrew people descended from, and that he would have many descendants (which he did). Abraham also had another son with his wife’s Egyptian servant, Hagar; his name was Ishmael, considered the ancestor of the Arab people.
Ibrahim is also an Arabic surname originating from the given name.
Meaning: “father of many” or “father of multitudes”