For Richard Salomon, Yabgu means "tribal chief", in the manner of the Kushans, suggesting that Kharahostes was already fully king by the end of the 1st century BCE, supporting a 10 BCE- 10 CE date for his reign.

For Joe Cribb, this is a misspelling by a careless scribe, and should be read "yuva-King" which means "Heir apparent", and therefore would push forward the years Kharahostes actually ruled to the first part of the 1st century CE.

[1] Kharahostes's name is recorded in the Greek form Kharahṓstēs (Χαραηώστης) and the Kharosthi forms Kharaosta (𐨑𐨪𐨀𐨆𐨯𐨿𐨟)[2] and Kharayosta (𐨑𐨪𐨩𐨆𐨯𐨿𐨟),[3] which are derived from the Saka name *Xārahōsta, meaning "splendid, mighty"[4] Kharahostes's own coins attest that he was the son of Arta, a brother of king Maues,[5] and Satrap of Chukhsa.

[6] According to F. W. Thomas and Hendrik Willem Obbink, his mother was Nada Diaka, who was the daughter of Ayasia Kamuia.

[9] Kharohostes' coinage bears a dynastic mark (a circle within three pellets), which is rather similar, although not identical, with the dynastic mark of the Kushan ruler Kujula Kadphises (three pellets joined together), which has led to suggestions that they may have been contemporary rulers.

The Indravarman Silver Reliquary is dated with certainty before the Bajaur casket, meaning it must have been dedicated by Indravarman as a Prince in the end of the 1st century BCE, implying that Kharahostes, the previous owner of the Silver Reliquary (as shown by the inscriptions) was already king before that time (at the very least before 6 CE, date of the Bajaur casket).