ispell-initialize-spellchecker-hook

ispell-initialize-spellchecker-hook is a variable defined in `ispell.el'.
Its value is

nil

• This variable may be risky if used as a file-local variable.

Documentation:
Normal hook run on spellchecker initialization.
This hook is run when a spellchecker is used for the first
time, before `ispell-dictionary-alist' is set. It is intended for
sysadmins to override entries in `ispell-dictionary-base-alist'
by putting those overrides in `ispell-base-dicts-override-alist', which is
a dynamically scoped var with same format as `ispell-dictionary-alist'.
This alist will not override the auto-detected values (e.g. if a recent
aspell is used along with Emacs).