nostalgically

From nostalgic + -ally. ally comes from Middle English allien, alien (“to form an alliance, associate, join; to become an ally; to introduce (someone) as an ally; to marry; to become related (to someone); to attack, engage in combat; to combine; (cooking) to combine ingredients, especially to bind them together”)alie, alleye, allie, ally, allye, aly, alye, alyȝe, from Anglo-Norman alier, allier, Middle French alier, allierallyer, alyer, and Old French alier (“to join together, unite; to alloy (metals); (cooking) to combine ingredients”) (modern French allier), from Latin alligāre, the present active infinitive of alligō, adligō (“to bind around, to, or up (something), bandage, fasten, fetter, tie; to hold fast; to detain, hinder”), from al-, ad- + ligō (“to bind, tie; to bandage, wrap around; to unite”) (from Proto-Indo-European leyǵ- (“to bind, tie”)). a doublet of allay and alligate and alloy and ligament.

Etymology from Wiktionary, CC BY-SA