Loukas

Latinised short form of compound names ending in -lind, t=tender, soft (English -inda), such as Sieglinde and Dietlinde, and earlier names such as and, from linþaz, whence also t=gentle, mild, pliable, limber

From Late - saint's name Laura, from the feminine form of laurus

Used since the sixteenth century, possibly originally a pet form of Elizabeth, but generally accepted as a variant of Late Latin lilium

From Louis, from Loïs, Loïc, &c