θυμιατέον
From LSJ
ὁ χρόνος ἐστὶ δάνος, τὸ ζῆν πικρός ἐσθ' ὁ δανίσας → time is a loan, and he who lent you life is a hard creditor | time is on loan and life's lender is a prick
English (LSJ)
one must fumigate, Gp.6.10, Paul.Aeg.6.75.
Greek (Liddell-Scott)
θῡμιᾱτέον: ῥημ. ἐπίθ. τοῦ θυμιάω, δεῖ θυμιᾶν, Γεωπ. 6. 10.