'Happy' has no suffix. You could put a prefix on it though, as in 'unhappy', where 'un-' is the prefix.
happiness laziness sadness
happiness
silliness happiness fairness hopelessness brightness
Happily
A suffix changes a word's part of speech. For example, the word 'happy' is an adjective. But when you add a suffix, which is an ending, it can change the part of speech. Happily is an adverb. Happiness is a noun.
Some examples of words that contain a derivational suffix indicating they are nouns include "happiness" (suffix -ness), "teacher" (suffix -er), and "happiness" (suffix -ness).These suffixes often transform verbs and adjectives into nouns by changing their grammatical function.
happiness laziness sadness
'ness' To create an abstract noun, add the suffix 'ness' - eg, angriness, happiness, silliness, boredness.
The suffix "-ous" in the word "joyous" indicates the presence of joy or happiness. Therefore, "joyous" means filled with joy or happiness, exuding a sense of delight or celebration.
joyous
No, because the -ness is a suffix. The root word of happiness is happy.
The suffix "-ly" in "ecstatically" changes the adjective "ecstatic" into an adverb. In this case, "ecstatically" means in a manner that expresses intense happiness or joy.
happiness
There are dozens of words that use the suffix ness. Some of these are stiffness, sickness, illness, harshness, and evasiveness.
The suffix -ous forms adjectives to indicate a characteristic or quality. The suffix -ness similarly creates nouns from adjectives. The suffix -ish indicates a similarity to a given characteristic.
silliness happiness fairness hopelessness brightness
The suffix "-ful" typically forms adjectives, but the suffix "-ness" does not. Instead, "-ness" is used to create nouns from adjectives, such as "happy" to "happiness." In contrast, suffixes like "-able" and "-ic" do form adjectives. Therefore, "-ness" is an example of a suffix that does not create adjectives.