Meaning

verb run around the rim of

adjective having corresponding sounds especially terminal sounds

verb be similar in sound, especially with respect to the last syllable

originFrom rime (“to cover (something) with rime or (loosely) hoar frost”) + -ing (suffix forming present participial adjectives and verbs, and nouns denoting an action or the embodiment of an action).

Etymology from Wiktionary, CC BY-SA 3.0