Kithara is a 7 letter English word. It's valid Scrabble word worth 14 points. It's valid Words with friends word worth 13 points.
You can make 115 anagrams from letters in kithara (aahikrt).
1350-1400; Middle English Greek kithára lyre; cf. guitar, zither
The most probable is the latest by Petersen, which represents him as playing the kithara.