Obs. rare. [a. Russ. яаъ yam posting stage or house, Pers. yām post-horse.] A posting house.
1569. Turberv., Trag. Tales, etc. (1587), 147 b. If riding poast vpon a trotting Nagge. If homely yammes, in stead of Innes at night [etc.].
1800. Asiat. Ann. Reg., Misc. Tracts, 236/2. Each night they reached a yam, and each week a city.
