I was reading Dante's Divine Comedy, and this verse caught my attention (Hell 25.45 with my translation):
mi puosi 'l dito su dal mento al naso
I put my finger up from my chin to my nose
This is the typical finger gesture for hushing (image source: Getty Images):
I was somewhat surprised that this gesture is old enough to be known to Dante in early 14th century Italy. Did the Romans have a similar — or even identical — finger gesture for hushing? A passage like the one from Dante with some commentary would be great. If there is no Roman record of this thing, later Latin attestations or some justification for non-existence would be nice.
Another well known finger gesture appears to have been known to Romans, so it seems genuinely possible that this one would be, too.