Seif

English Wikipedia has an article on:

Seif

Wikipedia

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.

Seif (plural Seifs)

1. A surname.

• According to the 2010 United States Census, Seif is the 40976^th most common surname in the United States, belonging to 532 individuals. Seif is most common among White (88.53%) individuals.

• Hanks, Patrick, editor (2003), “Seif”, in Dictionary of American Family Names, volume 3, New York: Oxford University Press, →ISBN.

• fise, Feis, fies, EFIS, feis, ISEF, EFIs, ISFE

• IPA^(key): /saɪ̯f/

Seif f (plural Seife)

1. soap

• Piter Kehoma Boll (2021) “Seif”, in Dicionário Hunsriqueano Riograndense–Português (in Portuguese), 3rd edition, Ivoti: Riograndenser Hunsrickisch, page 149