Regarding "wormhole" and "monocle", they form a "slant rhyme" or "half rhyme": https://www.thefreedictionary.com/slant+rhyme https://www.thefreedictionary.com/s

Regarding "wormhole" and "monocle", they form a "slant rhyme" or "half rhyme": https://www.thefreedictionary.com/slant+rhyme https://www.thefreedictionary.com/slant+rhyme