to press in on someone from every side; of a crowd, to throng and physically crush a person.
This word is built from a prefix meaning "together" or "from all sides" joined to a plainer verb (θλίβω) that means "to press" or "squeeze." The compound sharpens it: not just pressing, but pressing in from every direction at once. It is an uncommon, rather bookish word, and in the whole New Testament it appears only twice, both in a single scene.
That scene is Mark chapter 5. As Jesus makes his way to the house of a dying girl, a large crowd is packed around him and keeps crushing against him bodily. The form of the verb pictures this as ongoing and sustained: they kept thronging him, hemming him in on all sides. It is not a picture of a polite following at a distance but of a dense, jostling mob pressed skin to skin.
The word is doing quiet narrative work. The crushing crowd is the backdrop for the sick woman who reaches out to touch Jesus on purpose, hoping to go unnoticed in the crush. When Jesus asks who touched him, the disciples object that a whole crowd is pressing against him: how can he single out one touch? That is the point. Everyone was pressing against him without meaning anything by it; she alone reached for him in faith. The Gospel of Luke found the picture so physical that in his version he swapped in an even stronger verb (συμπνίγω), which means "to choke" or "nearly smother."
Disputed
How much intensifying force the prefix syn- adds here: whether it genuinely means pressure from all sides, or is only a stylistic variant of the simpler verb whose weight comes from the context.
- majorityThe prefix is intensive or convergent, giving the sense of a crowd pressing from every direction, a real strengthening of the simplex used earlier in Mark 3:9.; C. E. B. Cranfield, The Gospel According to Saint Mark, CGTC (1959); William L. Lane, The Gospel of Mark, NICNT (1974); R. T. France, The Gospel of Mark, NIGTC (2002)
- minorityBy the koine period the force of such prefixed compounds had often weakened, so the compound is largely a stylistic variant of the simplex, and the physicality comes from the narrative rather than the prefix.; Joel Marcus, Mark 1-8, Anchor Yale Bible (2000); Adela Yarbro Collins, Mark, Hermeneia (2007)