Latin
bipennis
‘two-winged’
Every word has its own definition in its root. These English words share one: Latin bipennis.
2 English words in this record descend from Latin bipennis, most familiar first.
From Wiktionary, by Wiktionary contributors, CC BY-SA 4.0, via kaikki.org (dump of Oct 3 2026); adapted. License.
Etymograph / Latin bipennis