adlegationEtymologyFrom Latin adlegatio, allegatio (“a sending away”), from adlegare, allegare (“to send away with a commission”), from ad (“in addition”) + legare (“to send as ambassador”). Compare allegation.adlegation means A right formerly claimed by the states of the German Empire of joining their own ministers with those of the emperor in public treaties and negotiations to the common interest of the empire. Lexicurio rates it Sui generis — a strength score of 87 out of 100.nounA right formerly claimed by the states of the German Empire of joining their own ministers with those of the emperor in public treaties and negotiations to the common interest of the empire.“it thought it had a power of extending it's right of adlegation”