This is the word for chair (jatÄ“na*) with an augmentative suffix, making it the word for ‘throne’ or some other sort of elevated or important seat. One could refer to the chair at the head of the table as jatÄ“nar, or a judge’s bench, etc. And of course, Sauron’s favorite hangout:
se jÄn mo mÄrÅn maxÄ“ sÅ« jatÄ“nar jaxÄ“;
One for the dark lord on his dark throne
*I haven’t blogged these words yet.