ψαυστέον
From LSJ
νόησε δὲ δῖος Ὀδυσσεὺς σαίνοντάς τε κύνας, περί τε κτύπος ἦλθε ποδοῖιν → godly Odysseus heard the fawning of dogs, and on top of that came the beat of two feet
English (LSJ)
A one must touch, Antyll. ap. Orib.10.23.23.
Greek (Liddell-Scott)
ψαυστέον: ῥημ. ἐπίθ., πρέπει τις νὰ ψαύσῃ, Ἄντυλλ. παρ’ Ὀρειβασ. 2. 436, Dar.