===> nimitta-bhūta [ nimittabhUta ]3[ nimitta-bhUta ] mfn. become or being a cause or reason or means cf. MW.
===> nimitta-mātra [ nimittamAtra ]3[ nimitta-mAtra ] n. the mere efficient cause or instrument cf. Bhag. cf. Veṇis
===> nimittatva [ nimittatva ]3[ nimitta-tva ] n. (in phil.) the state of being a cause, causality, instrumentality