adjective/ɛ.ze/
easy to do, with ease, simple, effortless; wealthy, with no money problems, affluent, prosperous, on easy street, in easy circumstances; smooth, fluid (about a movement or a conversation); loose, big
“Il est aisé de participer.” — It is easy to take part.
From Old French aisié (“eased”), past participle of aisier (“to put at ease”). More at easy.