料 (liào) as a verb means 'to expect, to anticipate' — it is often used with 到 (料到 'foresee') or negated (没料到 'didn't expect'). This verb sense is unrelated to the noun sense 'material, stuff' (also 料). Among the siblings, only 塞 (sāi) and 填充 (tián chōng) share a 'stuff' meaning, but they are physical actions, not mental expectations.