sescuplus

From sēsqui- (“one and a half”) +‎ -plus (“-fold”).

• sēsquiplus

• (Classical Latin) IPA^(key): /ˈseːs.ku.plus/, [ˈs̠eːs̠kʊpɫ̪ʊs̠] or IPA^(key): /seːsˈkup.lus/, [s̠eːs̠ˈkʊpɫ̪ʊs̠]
• (modern Italianate Ecclesiastical) IPA^(key): /ˈses.ku.plus/, [ˈsɛskuplus] or IPA^(key): /sesˈkup.lus/, [sesˈkuplus]

sēscuplus (feminine sēscupla, neuter sēscuplum); first/second-declension adjective

1. one and a half times as much, having the ratio of three parts to two
   • early 7th c. CE, Isidore of Seville, Etymologiae sive Origines 1.17:^[1]

     In his duobus per divisionem pedes legitimi colliguntur. Aequa divisio est quotiens arsis et thesis aequali temporum divisione caeduntur. Dupla, quotiens ex his unum alterum duplo vincit. Sescupla vero est, quotiens unum alterum sescuplo superat. In simpla enim eius parte unus plus invenitur: in dupla unus minus habetur. Sescum enim dimidium dicitur.

First/second-declension adjective.

From sexcuplus (“sixfold”) with simplification of -x- to -s-, either as part of the general tendency to simplify [ks] to [s] before a consonant, or more specifically by the dissimilation of [ksk] to [sk] also seen in words such as sescentī, escendō.

• (Classical Latin) IPA^(key): /ˈses.ku.plus/, [ˈs̠ɛs̠kʊpɫ̪ʊs̠] or IPA^(key): /sesˈkup.lus/, [s̠ɛs̠ˈkʊpɫ̪ʊs̠]
• (modern Italianate Ecclesiastical) IPA^(key): /ˈses.ku.plus/, [ˈsɛskuplus] or IPA^(key): /sesˈkup.lus/, [sesˈkuplus]

sescuplus (feminine sescupla, neuter sescuplum); first/second-declension adjective

1. Alternative form of sexcuplus

• “sescuplus”, in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
• sescuplus in Gaffiot, Félix (1934) Dictionnaire illustré latin-français, Hachette.
• R. E. Latham, D. R. Howlett, & R. K. Ashdowne, editors (1975–2013), “sescuplus”, in Dictionary of Medieval Latin from British Sources‎^[1], London: Oxford University Press for the British Academy, →ISBN, →OCLC