🔼The name Malchus in the Bible
The name Malchus occurs only once in the Bible. He was the unfortunate servant of high priest Caiaphas, whose right ear got cut off during the arrest of Jesus in the garden of Gethsemane. Only John adds the detail that this man's name was Malchus and that the sword-wielding person was none other than Simon Peter (John 18:10). Only Luke submits that Jesus healed the ear (Luke 22:51).
🔼Etymology of the name Malchus
The name Malchus comes from the common Hebrew noun מלך (melek), meaning king:
For a meaning of the name Malchus, NOBSE Study Bible Name List reads King. Spiros Zodhiates (The Complete Wordstudy Dictionary) appears to note that the noun is proposed to be pronounced as melek, whereas the name Malchus is spelled with an α (alpha), which might indicate that our name is a participle, drawn from the verb מלך (malak), meaning to be or become king, hence Reigning, or it's the Aramaic variant meaning Counselor.