σηραγγόομαι
σηραγγόομαι, to be or become hollow
σηραγγ-όομαι, Pass.,
- to be or become hollow, Dsc. 5.121, Hld. 1.28:—Act. σηραγγ-όω, make spongy or porous, τίς ὁ τὸν πνεύμονα -ώσας; Corp.Herm. 5.6.