portative organ
Concise Oxford English Dictionary © 2008 Oxford University Press:
portative organ/ˈpɔːtətɪv/
▶noun chiefly historical a small portable pipe organ.
– origin C16: portative from OFr. portatif, -ive, appar. an alt. of portatil, based on L. portare ‘carry’.
'portative organ' also found in these Oxford entries:

