ˈgra]smənz, -raa], -rai], -rä], -rȧ]\ noun
Usage: usually capitalized G
Etymology: after Hermann G. Grassmann died 1877 German mathematician & Sanskritist
: a statement of certain regular changes exhibited by Indo-European voiced aspirates in Sanskrit and Greek: when the aspirates occur at the beginning of successive syllables one of them, usually the first, loses its aspiration and becomes in Greek a voiceless stop and in Sanskrit a voiced stop — compare grimm's law