different between contemporaneous vs equitemporaneous

English

Etymology

From Latin contempor?neus (“contemporary”), from con- (“prefix indicating a being or bringing together of several objects”) + tempor-, tempus (“time, period, age”) + -aneus (“-aneous, suffix meaning ‘of or pertaining to’”) (compare Late Latin tempor?neus (“opportune, timely”)).

Pronunciation

• (Received Pronunciation) IPA^(key): /k?n?t?m.p???e?.ni.?s/, /?k?n.t?m-/
• (General American) IPA^(key): /k?n?t?m.p???e?.ni.?s/
• Rhymes: -e?ni?s
• Hyphenation: con?tem?por?a?ne?ous

Adjective

contemporaneous (not comparable)

1. Existing or created in the same period of time.

Usage notes

For events which occur at precisely the same time, simultaneous is used.

Synonyms

• coeval, contemporary, cotemporal; see also Thesaurus:contemporary

Derived terms

• contemporaneously
• contemporaneousness

Related terms

• contemporaneity
• contemporarily
• contemporariness
• contemporary
• contemporization, contemporisation
• contemporize

Translations

English

Etymology

equi- +? temporaneous

Adjective

equitemporaneous (not comparable)

1. (obsolete) Performed in equal periods of time; contemporaneous.
   • 1845 Encyclopædia metropolitana

     […] has observed that the vibrations of a pendulum, though the arches it describes be unequal, are in the sense formerly declared equitemporaneous, &c.

References

• OED 2nd edition 1989