hetu—mat mfn. having a reason or cause, proceeding from a cause, [Pāṇ.]; [Sāṃkhyak.]; [Sarvad.]
accompanied with arguments, provided with reasons or proofs, well-founded, [Bhag.]; [R.]; [Bhāṣāp.]
having the Hetu (or second Avayava of a syllogism), [MW.]
controverted by arguments, [ib.]
open to arguments, reasonable, [MBh.]