Etymograph

English

pseudofusion

From pseudo- + fusion.

Formed from pseudo- + fusion

Ancient Greek ψεύδω ‘to lie’

Ancient Greek ψευδής ‘false, lying’

English pseudo-

Proto-Indo-European *ǵʰewd- ‘to pour’

…

Latin fundō ‘to pour’

Latin fusus ‘poured out, having been poured out, shed,…’

Latin fūsiōnem

Middle French fusion

English fusion

Today it means

noun The situation in which the heart rate becomes indistinguishable from that of an implanted pacemaker

Sources

Sources: Wiktionary, “pseudofusion”. 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 / pseudofusion

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