ogham names - celtic

From: João S. Lopes Filho
Message: 11342
Date: 2001-11-21

http://www.s-gabriel.org/names/tangwystyl/ogham/

Ogamic Lugaddu (g.Lugaddon) > Irish Lugáed
Lugudeccs (g.Lugudeccas) > Luguid
Luguvveccs (g.Luguvvecca) > Lugech [g.]

What are the meanings of these names? I understand Lugu-, but how about the
second elements?