2 occurrences in 2 dictionaries
Reference: Methegammah
Morish
Meth'eg-am'mah
Place taken from the Philistines. 2Sa 8:1. The corresponding account in 1Ch 18:1 has 'Gath and her towns' (lit. daughters). The signification of the name in Samuel is much disputed. Gesenius and F?rst interpret it 'bridle of the mother-city.' This would well agree with 'Gath and her daughter towns.'
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Smith
Me'theg-am'mah
(bridle of the metropolis), a place which David took from the Philistines, apparently in his last war with them.
Ammah may be taken as meaning "mother-city" or "metropolis," comp.
and Metheg-he-Ammah "the bridle of the mother-city" --viz. of Gath, the chief town of the Philistines.