I think there's a difference. "Almuerzo" -> "al muerzo", I know "al" means "the", from Arabic, I look up the etymology, the "muerzo" is from Latin "morsus", from which we get "morsel" in English. Mnemonic: "the morsel". Then I can guess that the form of the verb is almorzar, which is indeed the case. Even learning a simple word embeds and thickens a web of associations in one's mind. SRS strengthens this, makes it scale better.