laxitud
lassitude
lax
loose, slack, or not strict
+
-itud
noun suffix indicating a state or condition
Laxitud means lassitude and can be thought of as lax0 (loose or slack0) + -itud1 (noun suffix indicating a state1), describing a state of looseness or slackness.
noun
- lassitudeA state of physical or mental weariness; lack of energyDespués de un largo día de trabajo, sentía una gran laxitud. // After a long day of work, he felt great lassitude.