late 14c., "steward, majordomo, officer in a royal household in charge of ceremonies and feasts," from Old French seneschal, title of a high administrative court officer, from Frankish Latin siniscalcus, from Proto-Germanic *sini-skalk "senior servant;" first element cognate with Latin senex "old" (see senile); second element from Proto-Germanic *skalkoz "servant" (cognates: Gothic skalks, Old High German scalc, Old English scealc "servant;" see second element of marshal).
