Answer:

lux

AnswerCrossword Clue
LUXIllumination unit
LUXUnit of illumination
LUXIllumination measure
LUXMeter-candle's equivalent
LUX"Fiat ..." (Rollins College motto)
LUX"... et veritas" (Yale's motto)
LUXCommon word in academic mottoes
LUXOne of about 11 in a foot-candle
LUXBar in the shower
LUXNeighbor of Belg.
LUXMeter-candle
LUXSoap brand since 1925
LUXUnit of illuminance
LUXOld-timey soap brand
LUXLight unit
LUX".. Aeterna": Requiem Mass song
LUXDetergent sponsor of many '50s TV shows
LUXTiny Eur. nation
LUXNeighbor of Belg. and Ger.
LUXLight, in Latin
LUXLighting unit
LUXBrand of soap
LUXBelg. neighbor
LUX... et veritas.
LUX"... et Veritas," Yale motto.
LUXUnit of light.
LUX... et Veritas, Yale's motto.
LUXLight: Lat.
LUXPart of Yale's motto.
LUXCompanion of "veritas."
LUXUnit of illumination.
LUXEur. country
LUXLatin light
LUXFiat ...
LUX"... et Veritas," Yale motto
LUX"... et veritas"
LUXUniversity motto word
LUXNeighbor of Ger.
LUXLever Bros. brand
LUXSoap brand since 1899