English
protaspis
Protaspis comes from Ancient Greek ἀσπίς ‘shield’.
- Ancient Greekc. 800–300 BCEἀσπίςaspís‘shield’
- Englishtodayprotaspis
attested reconstructed ? uncertain or disputed deepest recorded ancestor
Earlier history uncertain.
Lineage
- Ancient Greekc. 800–300 BCEἀσπίςaspís‘shield’
- Englishtodayprotaspis
Linked words
through Proto-Indo-European *spey- ‘to expand, extend, stretch’
spike, spine, spinal, spinach, cusp, spire, spina, buckthorn, spigot, spica, 27 more
through Proto-Indo-European *speyd-
through Ancient Greek ἀσπίς ‘shield’
Today it means
noun A stage in the development of a trilobite where the creature has not yet developed articulated segments.
Language periods are conventional ranges, not dates for this word.
Etymograph / Ancient Greek ἀσπίς / protaspis