πικρὸν με ἀπαιτεῖς ἐνοίκιον → you ask too much of me, you demand a bitter rent from me
instrātum: i, n. insterno,I a covering (ante- and post-class.), Cato, R. R. 10, 3; Dig. 50, 16, 45.
īnstrātum, ī, n., s. īn-sternono. I.