sesqui-

sesqui-

combining form

Definition of SESQUI-

1

: one and a half times <sesquicentennial>

2

: containing half again as many atoms <sesquiterpene>

3

: intermediate : combination <sesquicarbonate>

Origin of SESQUI-

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, Gothic -h, -uh