Cat is to feline as dog is to canine as elephant is to ???.

I think the question is well summarised in the topic heading.

cat = feline
dog = canine
cow = bovine
horse = equine
elephant = ???

What is “???”? I won’t bother with telling you my reasons for asking, call it an idle curiosity. Your answers will be greatly appreciated.

pachyderm. At least according to Yosemite Sam.

I’ve certainly seen the word *elephantine * used.

“Elephantine” is used here:

http://www.phrases.org.uk/animal-adjectives.html

loxodontine

Second vote for pachyderm!

-ine adjectives and animals

*Pachyderm * is a noun though. If anything it would be the adjectival form pachydermatous.

Elephantine or Proboscidean. Either works though the latter is more strictly what you want since elephantine is also simply a synonym for ‘large’.

Let’s see now. Cats are felis and dogs are canis. The -ine suffix denotes “of” or “related to” so “feline” and “canine” would mean “of felis” or “of canis”

The Africal elephant is Loxodonta and would be “loxodontine” and the Asian elephant is Elephas and would be “elephine.”

However both are of the family Elephantidae so could be “elephantine.”

Then is an ass, asinine?

Aren’t Rhinoceroses also pachyderms?

“Pachyderm” is not an official classification (being polyphyletic - that is, being little more than a hodge-podge of not-terribly-related organisms). Rhinos, for example, are more closely related to horses than to elephants.

However, having said that, yes, rhinos, elephants, and hippos are all informally called “pachyderms” (because of their thick skin).

Yes, it is.