spread, disperse, vent, set forth
攄 centers on releasing something outward: spreading, dispersing, venting, or setting forth ideas or emotions.
攄 combines 扌 (hand) with 慮, which likely contributes the sound and the idea of releasing or expressing. The exact historical development is uncertain.
The hand radical 扌 beside 慮 suggests a hand releasing thoughts or feelings outward, like spreading ideas or venting emotions.
For チョ, imagine a hand spreading a deck of cards with a sharp 'cho!' sound: cho -> チョ, as the hand sets forth the cards.