threat
剽 centers on a threat or menace, often with a sense of swift, cutting action implied by the knife radical. The given meaning "threat" captures its core idea of intimidation or danger.
剽 combines 票 (which may contribute a sound element) with 刂 (knife), suggesting a cutting or swift action. The exact historical development is uncertain, but the knife radical often indicates a sharp or threatening action.
票 looks like a ticket or a floating object, and 刂 is a knife. Imagine a threatening note pinned to a ticket with a knife: a clear threat.
For ヒョウ, picture a hyena (ヒョウ) baring its teeth like a knife, making a threatening growl. The hyena's sound cues ヒョウ and its menacing look fits the meaning.