sesqui-
combining form
1
: one and a half times
sesquicentennial
2
: containing half again as many atoms
sesquiterpene
3
: intermediate : combination
sesquicarbonate
Word History
Etymology
Latin, one and a half, half again, literally, and a half, from semis half of an as, one half (probably from semi- + as as) + -que (enclitic) and; akin to Greek te and, Sanskrit ca, Goth -h, -uh