Old Testament Hebrew Lexical Dictionary
Strong's #829 - אֶשְׁפָּר
1) piece of meat, measured portion, date-cake (meaning and significance obscure)
V) rxb (בסר BSR) - Report: When good news is brought a feast with meat is prepared. [df: rVb] KJV (24): (vf: Hitpael, Piel) tidings, show forth, publish, messenger, preached - Strongs: H1319 (בָּשַׂר)
Nf ) rxb (בסר BSR) - Flesh: The skin and muscle or the whole of the person. Also meat as food. [Hebrew and Aramaic] [df: rVb] KJV (273): flesh, body - Strongs: H1154 (בֶּסֶר), H1320 (בָּשָׂר), H1321 (בְּשַׂר)
Jeff Brenner, Ancient Hebrew Research Center Used by permission of the author.
אֶשְׁפָּר an obscure word, twice found, 2 Samuel 6:19; 1 Chronicles 16:3. Vulg. renders it assatura bubulœ carnis, taking it unlearnedly enough from אֵשׁ fire, and פָּר ox. However, I have no doubt that we should understand a certain measure, or cup (of wine, or drink), for שְׁפָר with Aleph prosthetic, from the root שָׁפַר No. 3. Eth. ሰፈረ፡ to measure, whence መስፈር፡ a measure, cyathus, see Ludolphi Lex. Eth. p. 187 (kindred to סָפַר to number). Lud. de Dieu came very near the truth following the same etymology, and understanding it to be a measured part of a sacrifice.