光大

光大	guāng dà	to further develop and bring distinction to (a tradition, institution, family etc)
光	guāng	light; ray (CL:道) / bright; shiny / only; merely / used up; finished / to leave (a part of the body) uncovered
大	dà	big; large; great / older (than another person) / eldest (as in 大姐) / greatly; freely; fully / (dialect) father / (dialect) uncle (father's brother)
大	dài	see 大夫