Small stream or man of prayer
A modern American invention, Decklyn likely combines the phonetic appeal of names like Declan and Brooklyn. It is often associated with the Irish name Declan, meaning 'man of prayer', or the word 'beck', referring to a small stream.
Less common today
Decklyn isn't in the latest US Top 1000. It last peaked at #3,141 in 2015.
US births per 5-year period, 1990βpresent (SSA data).