obligation

UK: /ˌɒblɪˈɡeɪʃ(ə)n/ | US: /ˌɑːblɪˈɡeɪʃ(ə)n/

Definition
  1. n. a moral or legal duty to do something

  2. n. a binding agreement or promise

  3. n. something one must do due to social or personal pressure

Structure
ob <toward>lig <bind>ation <noun suffix>
Etymology

obligation = ob<toward> + lig<bind> + ation<noun suffix>

  • ob (Latin ob-, meaning "toward" or "against")
  • lig (Latin ligare, meaning "to bind")
  • ation (noun-forming suffix indicating an action or state)

Etymology Origin:
The word "obligation" traces back to Latin obligatio, derived from obligare ("to bind"). The prefix ob- intensifies the root ligare ("to bind"), originally referring to physical bonds (e.g., ropes) and later evolving into metaphorical or legal bonds (e.g., contracts, duties). The suffix -ation nominalizes the action, turning "to bind" into "the state of being bound." This reflects the word’s progression from literal ties to abstract commitments.

Examples
  1. Paying taxes is a legal obligation for citizens.

  2. She felt a strong obligation to help her family.

  3. The contract outlines the obligations of both parties.

  4. He fulfilled his obligation by volunteering at the shelter.

  5. Cultural traditions often come with unspoken obligations.