[67] What on that occasion is mindfulness (sati)?
That which on that occasion is mindfulness, recollection (anussati), remembrance (paṭissati), mindfulness, the state of remembering (saraṇatā), the state of bearing in mind (dhāraṇatā), the state of non-floating (apilāpanatā), the state of non-forgetfulness (asammusanatā), mindfulness, the faculty of mindfulness (satindriya), the power of mindfulness (satibala), right mindfulness (sammāsati) — this is the mindfulness that is present on that occasion.
English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.