-alis

of, relating to

Forms

-alis
-aris — Latin variant especially used when the stem already contained l, avoiding a repeated l sound.
-al — English ending borrowed through French or directly from Latin.
-ar — English ending continuing Latin -aris.

Origin

An older Latin adjective-forming suffix; its more remote ancestry is uncertain.

Note

Expresses a relationship without specifying its kind: material, place, purpose, and other connections are possible.

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adjective

substantial

Considerable in size, amount, or importance.

The repairs require a substantial amount of time and money.

Etymology

substantialLatinhaving substance

The older adjective concerns substance or real existence. It developed a quantitative sense for something with enough substance to be considerable or important.

More examples

She made a substantial contribution to the project.
We found substantial evidence supporting the account.
Their savings grew by a substantial margin.

Forms

substantial

Similar words

considerable: Often emphasizes amount or degree rather than solid reality.
significant: Significant emphasizes importance rather than physical size or amount.