fountainletn.
Etymology: See -let suffix.Previous versions of the OED give the stress as: ˈfountainlet.
the world > the earth > water > fountain > [noun] > little
a1661 T. Fuller (1662) Hunt. 48 In the afore-said Village there be two Fountaine-lets.
This entry has not yet been fully updated (first published 1897; most recently modified version published online September 2019).