capture, seize
擄 centers on taking someone or something by force: capturing a person or seizing an object.
擄 combines 扌 (hand) with 虜, which likely contributes both sound and the idea of capturing. The exact historical development of 虜 is uncertain.
The hand radical 扌 beside 虜 suggests a hand grabbing a captive: capturing or seizing.
For リョ, imagine a hand seizing a captive named Ryo: Ryo -> リョ, and the hand captures him.