English
protocluster
From proto- + cluster.
Proto-Indo-European *pér ‘through’
Proto-Indo-European *pró ‘forwards, before’
Proto-Hellenic *pró
Ancient Greek πρό ‘before’
Ancient Greek πρῶτος ‘first’
English proto-
Proto-Indo-European *gel- ‘to be cold, to freeze’
Proto-Germanic *klas-
Old English cluster ‘cluster, bunch, branch’
Middle English cluster ‘bunch, cluster, spray’
English cluster
Today it means
noun A group of galaxies that are beginning to form a cluster
Sources
Sources: Wiktionary, “protocluster”. By Wiktionary contributors, CC BY-SA 4.0, via kaikki.org (dump of Oct 3 2026); text adapted and restructured. Language periods are conventional ranges, not dates for this word. License.
Etymograph / protocluster