Root b-r-q

to flash, gleam

lightning (high voltage between a cloud and the ground accompanied by a bright flash)

electrician

to electrify

jewel, precious stone, gem, gemstone (especially an emerald)

electric, electrical (of or pertaining to electricity, or powered by electricity)

opposite, on the other side, across, over the way from

plum (oval fleshy fruit of dark red or purple colour)

lightning