The first word in Book II of Virgil's Aenead is "Conticuere". The entry in "Words" is as follows:
conticu.ere V 3 1 PERF ACTIVE IND 3 P
conticesco, conticescere, conticui, - V INTRANS
conticisco, conticiscere, conticui, - V INTRANS
cease to talk, fall silent, lapse into silence; cease to function, become idle
I have not seen this ending used for the 3rd person plural perfect tense before, wouldn't it normally be "conticuerunt"? I almost took it to be the infinitive at first but it is definitely the perfect stem being used (contic..). Is this a common ending, as I can't see it in my textbooks?