trompillen.

/trɒmˈpiː(j)ə/
/trɒmˈpiːl/Etymology: French, < trompe , trompe n.2; compare French trompillon.
rare. Apparently only attested in dictionaries or glossaries.
1828 N. Webster Trompil, an aperture in a tromp.
1891 Trompille.
This entry has not yet been fully updated (first published 1915; most recently modified version published online June 2021).