proximate

noun 0.797

first cause

noun 0.657

cause

noun 0.643

root cause

noun 0.635

causation

noun 0.610

external cause

noun 0.600

causal

noun 0.599

causality

noun 0.584

probable cause

noun 0.575

causative

noun 0.574

common cause

noun 0.572

causer

noun 0.555

cause of action

noun 0.550

aetiology

noun 0.528

pathogenesis

noun 0.514