vexillum
Concise Oxford English Dictionary © 2008 Oxford University Press:
vexillum /vɛkˈsɪləm/
▶noun (pl. vexilla /-lə/)
- 1 a standard, flag, or banner, especially of the ancient Roman military.
- 2 Botany the large upright petal of a sweet pea or related flower.
- 3 Ornithology the vane of a feather.
– origin L., from vehere ‘carry’.
'vexillum' also found in these Oxford entries:

