क्रियाविशेषकाः प्रादय उपसर्गाः ॥ कZ_०२.१०.१८ ॥
kriyāviśeṣakāḥ prādaya upasargāḥ
Preverbs/prefixes (upasargas), such as pra-, etc., are modifiers that specify/qualify the action.
They change operational meaning (e.g., ‘send’ vs ‘send forth/dispatch’), so precise prefixes reduce ambiguity in execution and liability.