NoDictionaries   Text notes for  
... minaci voce dum terret, viduus pharetra risit...

Historic present: while Apollo tried to frighten Mercury "in a menancing/threatening voice," using the words "unless you return (lit., "shall have returned") <my cows>...."; note that in o.o. the fut. perf. indic. of a minatory condition is changed to the pluperf. indic.