First and middle ideas for sibling to Lake

Aria is a multi-cultural name with two extremely popular versions: this more word-like one along with Arya, the spelling used for the feisty young heroine of Game of Thrones. There were about 6400 baby girls named Aria in the US last year alog with 2400 named Arya, which counted together places the name in the Top 10.

A venerable boys' name in Persian and South Asian cultures that is increasingly used for girls in most parts of the world, thanks largely to the popularity of Game of Thrones character Arya Stark. In the U.S., for instance, there were 1890 newborn girls named Arya in 2016 and just 54 boys in 2016. The related Aryan remains mostly male, however, so it would likely be a better choice for a little boy, if you don't mind the other meaning.

Catherine is one of the oldest and most consistently well-used girls’ names, with endless variations and nicknames. The Catherine form feels more gently old-fashioned and feminine than the more popular K versions. Most stylish nickname for Catherine right now: Kate...or Cate, a la Blanchett.

Lane is a recent hit name, that could be used for either gender, but is much more popular for boys. It's a surname that projects the pleasant picture of narrow, tree-lined country roads.

This distinctive spelling was popularized by the R&B singer Mya (Harrison) and has inspired many baby namers to adopt Mya for themselves.

An ancient tree that figures in literature from Shakespeare to Harry Potter and is believed to possess magical powers, Willow is a lovely name, as graceful as its inspiration.