How to spell CAANTHOID correctly?

If the correct spelling is "cannthoid", there are a few suggestions: "cannaboid", "canthoid", "cantoid" or "catholicoid". For "canthoid", possibilities include "canthodic", "canthoidic" or "canthotic". For "cathanthoid", options might include "cathodic", "cathoidic" or "cathotic". Context and intended meaning can help determine the best option