Own.
A suffix of Latin origin, occurring unfelt in English nouns, as in chieftain, captain, chaplain, curtain, and, as originally, in adjectives, as in certain, etc. It is a Middle English and Old French form of -an (which see).
noun.
The eighteenth letter of the Arabic alphabet, having a vibratory palatal sound without any equivalent in English.
noun.
A spring; a fountain. See the extract.