וימררו את חייהם בעבודה קשה... את כל עבודתם אשר עבדו בהם בפרך
The Talmud Pesachim 39a explains that Chazeres/ lettuce, which may be used for marror, bitter herbs, is representational of the type of crushing hard labor to which the Jewish People were subjected by their Egyptian taskmasters. Chazeres begins soft (at first, when one bites into it, it seems soft, almost sweet), becoming marror and bitter tasting overtime; likewise, the Egyptian initiated the Jewish slave labor with sweetness: either by offering them money in reimbursement for their time and toil; or by convincing them of the significance of their labor, etc. Chazal’s statement attributing the use of lettuce to its similarity…