I don't believe the Jewish Encyclopedia is wrong. It was prepared by 50+ native Hebrew speaking Jewish scholars. I believe that they know Hebrew better than any anonymous person on a discussion forum.
Strong's concordance, published in 1890, is NOT a Hebrew lexicon all it shows is how the words were translated in the KJV. It has been found to have about 15,000 errors or omissions. There is no such name in Hebrew as Yahshua as I have shown from the Jewish Encyclopedia. Coming in the Lord's name does not mean that Jesus' name is spelled Yahshua. In the name of means in the authority of.
Yeshua is the diminutive of Jehoshua, As Jim is the diminutive of James. Yeshua and Jehoshua are the same name. There is no Hebrew name Joshua that is how Jehoshua has been transliterated in English. Search the Hebrew scriptures you will not find the name יושע/yoshua
There is no such name as Yahshua. it does not exist in Hebrew. That is an invention of sacred names who know nothing about Hebrew.
Here is definition of Yehoshua from Brown, Driver, Briggs Hebrew Lexicon. The first two head words are pronounced Yehoshua. The one which is preceded by "later" is pronounced Yeshua. The vowel points for pronunciation were supplied by the Masoretes in the early years of AD.
יְהוֹשׁוּעַ, יְהוֹשֻׁעַ S3091 GK3397, and (later יֵשׁוּעַ S3442, 3443 GK3800, 3801, n.pr.m. (& loc., v. 9 infr.) (י׳ is salvation, or י׳ is opulence, cf. אֱלִישָׁע, אֱלִישׁוּעַ, אֲבִישׁוּעַ, & Nes 1892, 573 f.; in any case it came to be associated with ישׁע, cf. Mat 1:21; on יֵשׁוּעַ v. especially Frä iv, 1890, 332 f. Müll 1892, 177 f. who cite analog. for change of וֹ to later—ֵ, & Nes)—1. Moses’ successor, son of Nun, ( Ἰησοῦς) יְהוֹשׁוּעַ Dt 3:21 Ju 2:7; = יְהוֹשֻׁעַ Ex 17:9, 10, 13, 14; 24:13; 32:17; 33:11 Nu 11:28; 13:16; 14:6, 30, 38; 26:65; 27:18, 22; 32:12, 28; 34:17 Dt 1:38; 3:28; 31:3, 7, 14(), 23; 34:9 Jos 1:1 + 167 times Jos; Ju 1:1; 2:6, 7, 8, 21, 23; 1 K 16:34; 1 Ch 7:27; = יֵשׁוּעַ Ne 8:17 ( Ἰησοῦς); according to P, name changed by Moses from הוֹשֵׁעַ q.v. Nu 13:8, 16 ( Αὑση) Dt 32:44 ( Ἰησοῦς). † 2. יְהוֹשֻׁעַ a Bethshemite 1 S 6:14, 18 ( Ὡσηε, A Ἰησοῦς, L Ἰωσηε). † 3. h.p. after the restoration, son of Jehozadak יְהוֹשֻׁעַ ( Ἰησοῦς) Hg 1:1, 12, 14; 2:2, 4; Zc 3:1, 3, 6, 8, 9; 6:11; = יֵשׁוּעַ ( Ἰησοῦς) Ezr 2:2; 3:2, 8; 4:3; 5:2; 10:18; Ne 7:7; 12:1, 7, 10, 26. † 4. יְהוֹשֻׁעַ governor of Jerusalem under Josiah 2 K 23:8 ( Ἰησοῦς, L Ἰωσηε). † 5. יֵשׁוּעַ ( Ἰησοῦς) head of one of the classes of priests 1 Ch 24:11, possibly also Ezr 2:36 = Ne 7:39. † 6. יֵשׁוּעַ ( Ἰησοῦς, etc.), a Levitical family-name of frequent occurrence: a. Ezr 2:40; 3:9 = Ne 7:43; 8:7; 9:4, 5; 10:10; 12:8. b. 2 Ch 31:15; Ezr 8:33; Ne 12:24. † 7. יֵשׁוּעַ ( id.), father of a builder at the wall Ne 3:19, perhaps = † 8. a Judaite family-name ( id.), Ezr 2:6 = Ne 7:11 (cf. Sm 12). † 9. n.pr.loc. in south of Judah Ne 11:26 בְּיֵשׁוּעַ ( ἐν Ἰησού, L ἐν Σουα).
Brown, F., Driver, S. R., & Briggs, C. A. (1977). Enhanced Brown-Driver-Briggs Hebrew and English Lexicon (p. 221). Oxford: Clarendon Press.
An out of copy right edition of this lexicon can be downloaded at internet archives.