סָפַח çâphach (H5596)

properly, to scrape out, but in certain peculiar senses (of removal or association)

1) to join, attach to, join together 1a) (Qal) to join, attach to 1b) (Niphal) to attach oneself 1c) (Piel) joining (participle) 1d) (Pual) to be joined together, hold oneself together 1e) (Hithpael) to join oneself 2) (Piel) to cause a scab upon, smite with scab

or שָׂפַח; (Isaiah 3:17), a primitive root;