rate loss basic vocabulary months ago extended discussion proposal made fifties swadesh certain lists meanings property words expressing lost fairly constant rate per millennium languages particular certain 100 meaning list rate around 86 noting bergsland vogt adduced examples rate seems lower pointed found examples clearly higher jacques guy referred eastern greenlandic data discussed bergsland vogt current anthropology 1962 carefully read paper see state surmise rate higher calculate presuumably sources greenlandic old enough moreover purely conjectural rate 72 mention still low enough purposes original discussion namely assure family enough ramification would substantial portion original vocabulary reflected least two descendants far 10 000 years provided language independely losing 28 original vocabulary per millennium nt numbers handy jacques better anyway probably whip also add bergsland nd vogt data also consistent many assumptions notably rate retention e greenlandic 86 substanitally lower eskimo languages result e greenlandic different lexically w greenlandic two together yupik makes sense given family tree rates eveywhere could due slower vocabulary loss yupik even common ancestror e w greenlandic well faster loss e greenlandic justification find bergsland vogt guy assumption prolem lies faster rate loss e greenlandic