ποιητέος
From LSJ
Sunt verba voces quibus hunc lenire dolorem possis, magnam morbi deponere partem → Words will avail the wretched mind to ease and much abate the dismal black disease.
English (LSJ)
α, ον,
A to be made or done, Hdt.1.191, 7.15, Hp.Art.27, Pl.R.361c; εὐλάβειά τινος π. Antipho 3.3.11; τὸ π., = τί δεῖ ποιεῖν, Th.4.99. II ποιητέον, one must make or do, And.3.16, Onos.22.2, etc.:—from Med., one must deem, περὶ πολλοῦ π. τὸ ἑαυτὸν γιγνώσκειν X.Mem.4.2.30.