Alternative to transliterating the English letters of Lleucu (my circle name meaning "beloved light" and "daybreak") into the Hebrew letters ללאכו, is the phonetic transliteration ללאכי.
Lleucu is pronounced "Lly-kee" (i.e. "Lley-kee"). Consequently, ללאכי is a better phonetic transliteration, whereas ללאכו is a better letter transliteration. In both transliterations, the א is vowelized with tzere . Importantly, both forms correctly convey the name in Hebrew, depending upon one's method of transliteration and kavanah. I claim both forms for my circle name Lleucu.
In a previous post, I wrote that ללאכו has a gematria of 87, which corresponds to the Divine Name Akvah. Akvah pertains to the right "side" of Divine Da'at (Divine Knowing). Similarly, ללאכי has a correspondence to Divine Names, through its gematria of 91; specifically, to the union of Hashem and Adnut (the secret of amen).
 Tzere corresponds kabbalistically to the sefirah Binah. (R' Aryeh Kaplan, Meditation & Kabbalah, p. 185)