Neuter of a derivative from an inseparable prefix akin to hama (through the idea of partition involved in connection) and meaning semi-; (as noun) half -- half.
see GREEK hama
ἡμίσιά (ēmisia) − 1 Occurrence
ἡμίσους (ēmisous) − 1 Occurrence
ἥμισυ (ēmisu) − 3 Occurrences