Philippi's law refers to a sound rule in Biblical Hebrew first identified by F. W. M. Philippi in 1878, but has since been refined by Thomas O. Lambdin.[1][2]
Essentially, in Biblical Hebrew, sometimes the sound /i/ shifted to /a/, but the reason for this development was unclear or debated.[3] It is "universally supposed to be operative", according to linguists in the field, but criticized as "Philippi's law falls woefully short of what one would expect of a 'law' in historical phonology...."[4]
Some critics suggested that it might not even be a rule in Hebrew, but rather a sound rule in Aramaic.[5] Even Philippi, who mentions it in an article about the numeral '2' in Semitic, proposed that "the rule was Proto-Semitic" in origin.[6][7] Philippi's law is also used to explain the vowel shift of Proto-Semiticbint for daughter to the Hebrew word bat (בת) and many other words.[8]
^Blake, Frank R. (1950). "The Apparent Interchange between a and i in Hebrew". Journal of Near Eastern Studies. 9 (2): 76–83. doi:10.1086/370960. JSTOR542721. S2CID161219913.
^Thomas O. Lambdin (1985). "Philippi's Law Reconsidered". In Ann Kort; Scott Morschauser (eds.). Biblical and Related Studies Presented to Samuel Iwry. Winona Lake, Indiana: Eisenbrauns. p. 136. ISBN9780931464232.
^Thomas O. Lambdin (1985). "Philippi's Law Reconsidered". In Ann Kort; Scott Morschauser (eds.). Biblical and Related Studies Presented to Samuel Iwry. Winona Lake, Indiana: Eisenbrauns. p. 135. ISBN9780931464232.
^Huehnergard, John. "Philippi’s Law." Encyclopedia of Hebrew Language and Linguistics. Edited by: Geoffrey Khan. Brill Online, 2013. Reference. URL. Retrieved 10 December 2013.
^Paul Joüon (Translated by T. Muraoka). A Grammar of Biblical Hebrew: Subsidia Biblica. Gregorian Biblical BookShop, 2006. ISBN9788876536298. Pages 88, 90, 117, 138, 147, 223, 279, 293 (n. 1).