head-shrinker

Etymology
Originally US, probably by reference to slang terms like “swelled head” for someone with delusions of grandeur; a psychiatrist would remove such delusions, thus figuratively shrinking the patient's swelled head.

Noun

 * 1)  A psychiatrist or psychotherapist; a shrink.
 * 2)  One who shrinks heads, as previously done by some Amazon tribes.
 * 1)  One who shrinks heads, as previously done by some Amazon tribes.

Translations

 * Finnish:
 * Hungarian: fejzsugorító