What is "lero"

Lero is an obscure Celtic god, invoked alongside the goddess Lerina as the eponymous spirit of Lérins in Provence. Nothing is known about these gods apart from these epigraphic dedications.

Lero is also an uncommon surname found in the United States.

Lero (The Irish Software Engineering Research Centre), Ireland, was established in 2005 as a Science Foundation Ireland Centre for Science Engineering and Technology (CSET), being one of nine (originally ten) such centres established by the Irish Government in various areas of science and engineering.