Emily Dickinson Lexicon

CON-CEIV'A-BLE, a. [Fr. concevable; It. concepibile; Sp. conceptible. See Conceive.]

1. That may be imagined, or thought; capable of being framed in the mind by the fancy or imagination. If it were possible to contrive an invention, whereby any conceivable weight may be moved by any conceivable power. – Wilkins.
2. That may be understood or believed. It is not conceivable, that it should be the very person, whose shape and voice is assumed. – Atterbury.