scot gaelic for Lord
Used in the SCA as an acceptable alternative to the title "Lord".
It is pronounced "TEE yearn" or "CHEE yearn"
(Proper Scot gaelic as a palital soft "t" that sounds similar to the Ch sound in cheese.)
The Gaelic also has it spelled at Tigherna, Tigerna, etc. the -a ending is not feminine as in Latin, but proper masculine ending in Old Scot.
See Lord and Award of Arms