from Wiktionary, Creative Commons Attribution/Share-Alike License
- Free of anxiety; not stressed or tense.
- in a relaxed position with the feet apart rather than at attention
- Allowed to refrain from being in rigid formation.
from the GNU version of the Collaborative International Dictionary of English
- n. free from pain, trouble, or anxiety.
Calque of the Old French a eise, from a ("at") + eise. (Wiktionary)