What does coevally mean?
Coevally is a formal adverb meaning at the same time as something else or within the same historical, geological, biological, or cultural period. Unlike a word such as simultaneously, which most directly suggests events occurring at one identical instant, coevally can also refer to phenomena that share a period without requiring exact simultaneity. The word is especially useful in historical and scientific writing, where related developments, fossil layers, species, artworks, or textual traditions may be described as coeval. For example, two species may have evolved coevally, and two cultural traditions may have flourished coevally. Its connotations are neutral and analytical, though the adverb is less common in everyday conversation than at the same time or alongside. Coevally is therefore valuable when precision matters: it identifies a shared span of time while allowing room for continuity, parallel development, and the gradual alignment of events that are related but not literally simultaneous.
adverbAt the same time as something else, or during the same historical, geological, biological, or cultural period.
- At the same time as something else or during the same period.
"The two plant species evolved coevally as pollinators carried traits between them."
"The two plant species evolved coevally as pollinators carried traits between them."
"The volcanic ash layer and the fossil bed are thought to have formed coevally."
Even evolution can have a rendezvous: two species may have developed coevally in response to the same pressures.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does coevally come from?
Coevally was formed in English by adding the suffix -ly to coeval. Coeval comes from Latin coaevalis, meaning “of the same age,” which combines co- (“together”) with aevum (“age”). The related Latin aevum is also connected with words such as aeon and aeonic.
How coevally is actually used
This is a formal and chiefly academic word, especially common in historical and scientific writing. It can describe events sharing a period without implying that they occurred at precisely the same instant.
Easily confused with coevally
Coeval is an adjective meaning existing or occurring at the same time or in the same period, whereas coevally is its adverb.