Bodies of Water: Lake, River and Brook

Highly unusual water name -- and actor Colin surname -- with a Scottish burr. Firth derives from the Old Norse word fjord.

Evocative modern unisex choice brought into the spotlight by actress Lake Bell.

Loch is a watery word that sounds more like a name because it's one step removed from its English form. Pronounced as "lock," it's also a short form of the variously-spelled Lachlan.

Soft and mellifluous nature-surname name, situated miles away from the dated Marshall.

Nature names like Ocean and River are flowing back into favor, especially with nature lovers and green-oriented parents.

Unique, soft, and flowing.

River shares the tranquil feeling of all the water names, and seems to have pretty much escaped its past strong association with River Phoenix and his unfortunate fate. Actor Joaquin Phoenix named his son with actress Rooney Mara after his brother River.

The name Rivers combines two major trends: nature names like the popular River itself, and S-ending surname-names such as Brooks, Rhodes, and yes, Rivers.