combining form 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, Gothic -h, -uh one and a half times , containing half again as many atoms , intermediate ; combination
SESQUI-
Meaning of SESQUI- in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012