tirda : third
The Illunse word for third is tirda. Tirda is an unusual last name that can be Romanian. TIRDA is an acronym for Temporal Intermittent Rhythmic Delta Activity, which is an EEG (Electroencephalography) pattern.
This word is a mixture of the Old English word for third þridda (third, as an ordinal) which I transliterate to thridda, and the Latin word for third tertius (third (in a series); 3rd part).