Word: slackening
Part of speech: Noun
Syllables: sla
cke
ning
Definition: The act by which something slackens; loss of speed, tautness, etc.
Morphemes:
Affix: slack
Language: en
PoS: Verb
Meaning: To slacken; make less active or fast
Affix: -en
Language: en
Meaning: inchoative
Affix: -ing
Language: en
PoS: Suffix
Meaning: Used to form uncountable nouns from verbs denoting the act of doing something, an action.