Origin of the name ISAAK.
Etymology of the
Meaning of the baby name ISAAK.
ISAAK (Ἰσαὰκ). Greek
form of biblical Isaac (q.v.),
meaning "laughter." Usage: Russia (Исаак).
... Isaak has always been a
favorite in the Greek Church. Several of the family of Comnenus,
both at Constantinople and Trebizond, rendered Isaak a royal name; and
Isaak or Eisaak, whose feast falls on the 30th of May, is the patron of
that cathedral at Petersburg which the czars have been said to dread to
finish, on account of the prediction that he who completes it shall not
long survive the end of the work. The name is frequently used in
Russia and the other Greco-Slavonic countries, though not much varied...
(History of Christian Names, Yonge, 1884)