Extended Strong's Hebrew Lexicon (Brown-Driver-Briggs based)
Shear-jashub
Usage: A man living at the time of Divided Monarchy, only mentioned at Isa.7.3; son of: Isaiah (H3470A); brother of: Maher-shalal-hash-baz (H4122) § Shear-jashub = "a remnant shall return" a symbolical name for the son of Isaiah the prophet