brooklet

From brook +‎ -let.

brooklet (plural brooklets)

1. A little brook.
   • 1918, Edgar Rice Burroughs, The Land That Time Forgot Chapter IV

     There was a very light off-shore wind and scarcely any breakers, so that the approach to the shore was continued without finding bottom; yet though we were already quite close, we saw no indication of any indention in the coast from which even a tiny brooklet might issue, and certainly no mouth of a large river such as this must necessarily be to freshen the ocean even two hundred yards from shore.