from
www.shivashakti.com:
"Tantra, or more properly tantrika..."
It's just a difference in spelling. Tantric is the westernized version of "that which has to do with Tantra" where as Tantrik is just a different way of indicating "tantra (tantrika)." English does a lot of wierd things with the Sanskrit language.
__________________
Sage knows our mythic history, King Arthur's and Sir Caradoc's
She answers hard acrostics, has a pretty taste for paradox
She quotes in elegiacs all the crimes of Heliogabalus
In conics she can floor peculiarities parabolous
-C'hi