Genesis 23:16

וישקל אברהם לעפרן AND ABRAHAM WEIGHED TO EPHRON [THE SILVER] — The name Ephron is written defectively (without the ו) to indicate that there was something missing in Ephron viz, sincerity — because he promised much but did not do even the very least (Bava Metzia 87a): He took from him big Shekels, viz., centenaria (worth a full 100 smaller units) as it is said, “money current with the merchant” which means, such coins as were everywhere accepted as worth a full Shekel — for there are places where their Shekels are of large size, centenaria; old French Centenars (cf. Ruth R. 7).

וַיִּשְׁמַ֣ע אַבְרָהָם֮ אֶל־עֶפְרוֹן֒ וַיִּשְׁקֹ֤ל אַבְרָהָם֙ לְעֶפְרֹ֔ן אֶת־הַכֶּ֕סֶף אֲשֶׁ֥ר דִּבֶּ֖ר בְּאׇזְנֵ֣י בְנֵי־חֵ֑ת אַרְבַּ֤ע מֵאוֹת֙ שֶׁ֣קֶל כֶּ֔סֶף עֹבֵ֖ר לַסֹּחֵֽר׃

And Avraham hearkened to ῾Efron; and Avraham weighed to ῾Efron the silver, which he had named in the hearing of the sons of Ḥet, four hundred shekels of silver, current money with the merchant.