Etymograph

English

treeswift

From tree + swift.

A compound of tree + swift

Proto-Indo-European *dóru

Proto-Germanic *trewą

Proto-West Germanic *treu

Old English trēo ‘tree’

Middle English trau

English tree

Proto-Indo-European *(s)weyp- ‘to twist’

Proto-Germanic *swiftaz

Old English swift

Middle English swift

English swift

Today it means

noun Any bird in the family Hemiprocnidae, closely related to the true swifts in the family Apodidae, but differing in having a forked tail and a crest or other facial ornamentation, and in being able to perch on branches.

Sources

Sources: Wiktionary, “treeswift”. 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 / treeswift

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