Greek legends at Alexandria, Egypt, translated

KAISAR SEBASTOS    Caesar Augustus  [these are titles, not the name of the first emperor, Augustus]
KAIΣ ΣEBA    Caesar Augustus
KAIΣ ΣEB ΓEP    Caesar Augustus Germanicus
CEBACTH     Autusta (female)
CEB     (SEBASTOS) Augustus   [often at the end]

AYTOKP     Autokrater  ("He who rules by himself" = Imperator, also like Augustus, but CEB is used for "Augustus")
AYTO    Autokrater  (Imperator)
AYT     Autokrater  (Imperator)   [often at the beginning]
AVT KAIC   Imperator Caesar
AYT KAI   
AYT K
A K

ΓEPM   Germanicus
ΓEP

CEV CEB  Severus Augustus

L    year  [followed by a numeral for the regnal year in Greek]
ETOYC    year  [followed by a numeral]
ETOVC      (Y and V are virtually the same)

M    Marcus (several emperors had "Marcus" as part of their name)