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seif

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seif¹

Where it comes from

From Arabic سَيْف (sayf, “sword”). Doublet of xiphos.

noun seifs · saif

  1. A sand dune that elongates parallel to the prevailing wind. Such seifs have a somewhat zig-zag form instead of a fairly straight line. On the top of seifs small transverse dunelets are very often found, and these may be likened to almost straightened-out barchans.[…]On the top of the seif they form a wave-like pattern with a fairly defined "wavelength".

    Similar: longitudinal dune

Seif²

Where it comes from

Two possible origins:

* Borrowed from German Seif, a metonymic occupational surname for a soap-maker, from Seife (“soap”).

* A variant spelling of Saif, an Arabic surname which can be found in both Muslim and Christian communities.

proper noun Seifs

  1. A surname.

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Cite this
MLA

"seif." Wiktionary, via Micwyn, micwyn.com/word/seif. Accessed 6 Nov. 2026.

APA

seif. (n.d.). In Wiktionary, via Micwyn. Retrieved November 6, 2026, from https://micwyn.com/word/seif

Chicago

"seif." Wiktionary, via Micwyn. Accessed November 6, 2026. https://micwyn.com/word/seif.

BibTeX
@misc{seif_2026,
  title = {seif},
  howpublished = {Wiktionary, via Micwyn},
  year = {2026},
  url = {https://micwyn.com/word/seif},
  urldate = {2026-11-06}
}