There is a prefix -em (-εμ) which is used to formulate words containing the essence of "within", e.g. "εμπεριέχει" (emperiechei/"including"), or "εμπύρετος (emp

There is a prefix -em (-εμ) which is used to formulate words containing the essence of "within", e.g. "εμπεριέχει" (emperiechei/"including"), or "εμπύρετος (empyretos/"feverish". The sound in such cases veers in the direction of "emp" rather than "eb", due to the prefix. It's still not a distinct m+p, but significantly less voiced than e.g. "μπύρα" (beer)