▁ ▁Et ym ology ▁▁ ▁The ▁origin ▁of ▁the ▁word ▁" C as or ate " ▁is ▁deb ated . ▁ ▁A ▁Latin ▁et ym ology ▁for ▁the ▁word ▁has ▁been ▁considered , ▁especially ▁from ▁the ▁word ▁cas ula ▁( l ittle ▁house ), ▁or ▁the ▁medieval ▁Latin ▁term ▁cas uri ▁( also ▁little ▁house ). ▁On ▁the ▁other ▁hand , ▁a ▁C elt ic ▁origin ▁of ▁the ▁name ▁has ▁been ▁suggested ▁to , ▁from ▁the ▁word ▁cas urus , ▁which ▁would ▁date ▁back ▁to ▁the ▁Ga ul ish ▁dom ination , ▁which ▁might ▁suggest ▁that ▁the ▁town ' s ▁orig ins ▁are ▁even ▁older ▁than ▁the ▁generally ▁accepted ▁theory ▁of ▁a ▁Roman ▁origin . ▁ ▁In ▁ 8 6 5 ▁AD , ▁a ▁document ▁makes ▁reference ▁to ▁C ator iac um ▁or ▁C ator ia co , ▁which ▁is ▁believed ▁to ▁be ▁a ▁reference ▁to ▁Cas or ate . ▁In ▁ 1 1 9 3 , ▁it ▁seemed ▁to ▁be ▁called ▁C ax er ad ho . ▁The ▁addition ▁of ▁" Pr imo " ▁( Ital ian ▁for ▁" first ") ▁to ▁Cas or ate ▁came ▁about ▁on ▁March ▁ 1 5 , ▁ 1 8 6 3 , ▁due ▁to ▁it ▁belonging ▁to ▁what ▁was ▁at ▁the ▁time ▁the ▁First ▁District ▁of ▁Milan , ▁and ▁it ▁has ▁since ▁then ▁been ▁named ▁thus . ▁ ▁History ▁▁ ▁The ▁orig ins ▁of ▁Cas or ate ▁Pr imo ▁are ▁not ▁clearly ▁known . ▁The ▁first ▁evidence ▁of ▁settlement ▁in ▁the ▁current ▁location ▁of ▁the