Myriad is a classical Greek name for the number 104 = 10,000. In modern English the word refers to an unspecified large quantity.
So I’m looking forward to the next myriad of spam comments/trackbacks. Not.
If I wouldn’t change the name of the wp-trackback.php from time to time and block several typical words inside before they even reach Akismet (the spam filter running here), this number would already have been reached a long time ago…