μνήσθητι τίς μου ἡ ὑπόστασις → remember how short my time is
ἄδυτος, ἀπροσπέλαστος, ἀστιβής, ἄρρητος, ἀκίνητος, ἀάατος, ἄβατος, ἀβέβηλος
