BT Šab 75a(32) :כי היכי דליצל̇ח̇ ציבעיה‏ : so that it should take up its [i.e. the snail's] dye well
See the entire entry for ṣḇaˁ, ṣeḇˁā n.m. color

BT Šab 75a(32) :כי היכי דליצל̇ח̇ ציבעיה‏ : so that it would absorb (?) its dye
See the entire entry for ṣlḥ vb. to prosper