Unable to speak because of emotion; choked up.
Origin of farklempt
- Yiddish farklemt past participle of farklemmen to clamp, catch (as in a vise), choke up from Middle High German verklemmen ver- pref. denoting completion (from Old High German far- per-1 in Indo-European roots) klemmen to grip, seize (from Old High German)
From American Heritage Dictionary of the English Language, 5th Edition