beast
A base word is the root word. Suppose you take the word added. Add would be the base word. Another example clapping- clap would be the base word.
The base word in "invalid" is "valid," which means something that is acceptable or true. When you add the prefix "in-" to "valid," it changes the meaning to "not valid" or "not acceptable."
A base word is a word by itself, and you can add prefixes and suffixes to change the tense. ("Sing is a word by itself, but I can change it to "singing" or "singer.") A root word has no meaning on its own; you have to add suffixes and prefixes for it to mean anything at all. ("Rupt" is not a word, but I can make it "disrupt" or "erupt" or "rupture.")
No, the additional prefixes are redundant and add nothing to the meaning.
You can add the suffix -ful to meaning: that makes the word "meaninful"-- filled with meaning, something worth remembering. You can also add the suffix -less: that makes "meaningless"-- something that has no meaning or isn't worth worrying about.
It can be, if you add a suffix or prefix. For example, in the word 'going', 'go' is the base word, and '-ing' is the suffix.
to add to an information
to add to an information
unpick
By adding the letter "r" to the word "hate," you get the word "hater," which does not mean hurry. To form a word meaning hurry, you would need to add the letter "y" to "hate," resulting in the word "hasty."
adjectif of " related to "
The prefix you would add to the word "marked" to change the meaning to "mark before" is "pre-". So it becomes "pre-marked."