The difference between Overling and Superior

When used as nouns, overling means a superior, whereas superior means a person of higher rank or quality.

Superior is also adjective with the meaning: higher in quality.

check bellow for the other definitions of Overling and Superior

Superior as an adjective:

Higher in quality.

Examples:

"Rebecca had always thought shorts were far superior to pants, as they didn't constantly make her legs itch."
Superior as an adjective:

Higher in rank.
Superior as an adjective:

More comprehensive, as a term in classification.

Examples:

"A genus is superior to a species."
Superior as an adjective (botany):

Located above. Above the ovary; said of parts of the flower which, although normally below the ovary, adhere to it, and so appear to originate from its upper part; also of an ovary when the other floral organs are plainly below it in position, and free from it. Belonging to the part of an axillary flower which is toward the main stem; posterior. Pointing toward the apex of the fruit; ascending; said of the radicle. Printed in superscript.

Examples:

"the superior jaw; the superior part of an image"

"a superior figure or letter"
Superior as an adjective:

Greater or better than average; extraordinary.
Superior as an adjective:

Beyond the power or influence of; too great or firm to be subdued or affected by; with to.
Superior as an adjective:

Of a planet: closer to the Earth than to the sun.