Hypodiastole
The hypodiastole (Greek: ὑποδιαστολή, hypodiastolḗ, lit. 'lower separation [mark]'), also known as a diastole, was an interpunct developed in late Ancient and Byzantine Greek texts before the separation of words by spaces was common. In the scriptio continua then used, a group of letters might have separate meanings as a single word or as a pair of words.