The name Elwood is a boy's name meaning "elder tree forest". Elwood and discussed in our forums with posts like "What would be the perfect twin?".
From the experts:
The "el-" sound is red-hot these days, and a myriad of place names and surnames give this name a wealth of possible namesakes. The main drawback is its kinship to the name of the hero of the Legally Blond series, Elle Woods, though that will fade with time.