ᴱ√SWEKE is a hypothetical root underlying Gnomish “sweep” and “broom” words like G. fweg and G. fwegra- (GL/36), where sw > fw as usual in Gnomish. I would retain this as a (Sindarin-only) Neo-Root ᴺ√SWEK “broom” to salvage these Gnomish words, adapting them with fw >> hw to better fit Sindarin phonology.