-or on some words indicates masculine gender and -ress indicates feminine.

The English suffixes for agentive nouns , -or and -ess come, via French, from Latin. They replaced the native (Old) English suffixes, the feminine of which was -ster (as in the names Baxter '(woman) baker' and Brewster '(woman) brewer'.

The abstract noun suffix -[i]ia (from both Greek and Latin) is more like our -ness or -hood. The agentive noun suffixes mentioned as not really an example of gender in English. Except in the pronominal system, English has lost gender marked by inflection or class. In many languages related to English, such as Russian, German, Latin, and Greek, grammatical gender is still very much a living part of the grammar. All nouns and adjectives have gender, etc.

Ceci n'est pas un seing.