Wooded lake or wood waterfall
A modern American invention, Timberlyn combines the word 'timber' (referring to wood or trees) with the popular suffix 'lyn' (often associated with a lake or waterfall). It evokes a sense of natural beauty and rustic charm. This name is part of a contemporary trend of blending nature-inspired nouns with melodic endings.
Less common today
Timberlyn isn't in the latest US Top 1000. It last peaked at #8,105 in 2017.
US births per 5-year period, 1990βpresent (SSA data).