Where does “tearfully” come from?

I need to work through this etymology chain carefully, but I notice there's a significant problem: the chain provided doesn't coherently connect to "tearfully." The chain shows: - English tearful ← English tear + Middle English -ful - But then it branches to: Middle English -en, Proto-Indo-European līg-, dóru, and pleh₁- These elements (līg-, dóru, pleh₁-) don't connect logically to "tear" (the liquid from eyes). These roots seem unrelated or possibly corrupted data. Without a reliable chain showing how "tear" actually derives through attested intermediate languages, I cannot write an accurate etymology sentence following your rules. Inventing missing steps would violate the instruction "State only what the chain supports." **Can you verify the etymology chain?** Specifically: - Does "tear" (the eye liquid) actually derive from

tearfully (English): In a tearful manner