swimmingly
swim·mingly
adverb
Origin
From swimming (“(adj.) moving in water as an ordinary means of motion; without difficulty”) + -ly (suffix forming adverbs from adjectives).
WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). CMU Pronouncing Dictionary. WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.