Causal

Part of speech: noun (n.)

A causal word or form of speech. Anglo-Saxon drencan to drench, causal of Anglo-Saxon drincan to drink. Skeat.

Part of speech: adjective (a.)

Relating to a cause or causes; inplying or containing a cause or causes; expressing a cause; causative. Causal propositions are where two propositions are joined by causal words. Watts.