Y09W25VC Word Roots — -ag/-act- (drive/do)

The root -ag- / -act- comes from Latin and carries the core meaning of 'to drive', 'to do' or 'to act'. It appears in words that describe action, agency and the capacity to bring about change or effect. Understanding this root helps students recognise a wide range of verbs and nouns used across academic, legal and everyday formal contexts. This module explores six Academic Vocab words alongside three further examples in the Word Families section.

Word Families

These three word-family examples show how -ag/-act- carries the idea of 'drive/do' into more complex words. Notice how the shared root can help you unlock meaning and use each word more accurately in academic writing.

agenda

/əˈdʒɛndə/

a‑gen‑da

noun

A list of items to be discussed or acted upon; also refers to an underlying or hidden set of goals.

Word Breakdown: -ag- (root meaning 'to drive' or 'to do') + -enda (Latin suffix meaning 'things to be done')

Example: Critics accused the media outlet of pursuing a political agenda rather than providing objective reporting.

Synonyms: programme, plan, goals

Collocations: political agenda, hidden agenda, set the agenda

proactive

/ˌprəʊˈæktɪv/

pro‑ac‑tive

adjective

Taking action to control a situation by causing things to happen rather than simply reacting when they do.

Word Breakdown: pro- (prefix meaning 'forward' or 'in advance') + -act- (root meaning 'to do') + -ive (suffix meaning 'tending to')

Example: Schools need to take a proactive approach to student wellbeing rather than waiting until a crisis emerges.

Synonyms: anticipatory, forward-thinking, initiative-taking

Collocations: proactive approach, be proactive, proactive measures

agent

/ˈeɪdʒənt/

a‑gent

noun

A person or thing that takes action or produces an effect; someone who acts on behalf of another.

Word Breakdown: -ag- (root meaning 'to drive' or 'to act') + -ent (suffix meaning 'one who does or acts')

Example: Feminist literary theory argues that female characters must be read as agents with their own desires, not merely passive figures.

Synonyms: actor, force, representative

Collocations: agent of change, free agent, human agency

Academic Vocab

advocate

/ˈædvəkeɪt/

ad‑vo‑cate

verb | [advocate – advocated – advocated]

To publicly support or recommend a particular cause, policy or idea, especially on behalf of others.

Word family: advocacy (n.), advocate (n.)

Example: The organisation advocates strongly for the rights of asylum seekers within the Australian legal system.

Synonyms: champion, support, argue for

Collocations: advocate for, strongly advocate, advocate reform

promote

/prəˈməʊt/

pro‑mote

verb | [promote – promoted – promoted]

To actively support, encourage or help something to succeed or become more widely accepted.

Word family: promotion (n.), promotional (adj.)

Example: The campaign sought to promote greater awareness of Indigenous land rights among the general public.

Synonyms: support, advance, champion

Collocations: promote awareness, promote change, actively promote

champion

/ˈtʃæmpiən/

cham‑pi‑on

verb | [champion – championed – championed]

To vigorously support or defend a cause or person; to act as the leading advocate for something.

Word family: championship (n.)

Example: Throughout her career, the activist championed the right of all children to access quality education, regardless of their background.

Synonyms: support, advocate, defend

Collocations: champion the cause, champion the rights, champion reform

argue for

/ˈɑːɡjuː fɔː/

ar‑gue for

phrase

To put forward reasons in support of a particular position, policy or idea.

Example: The paper argues for a fundamental restructuring of how mental health services are delivered in schools.

Synonyms: advocate for, make the case for, support

Collocations: argue for change, argue strongly for, argue persuasively for

defend

/dɪˈfɛnd/

de‑fend

verb | [defend – defended – defended]

To argue in support of something; to protect an idea, person or position from attack or criticism.

Word family: defence (n.), defensible (adj.)

Example: The author defends her controversial thesis by marshalling a substantial body of empirical evidence.

Synonyms: support, justify, protect

Collocations: defend the argument, defend a position, defend the claim

X advocates for

/ˈædvəkeɪts fɔː/

ad‑vo‑cates for

phrase

Used in academic writing to attribute a clear position of support or promotion to a text, argument or person.

Example: The manifesto X advocates for a complete overhaul of the tax system to reduce inequality.

Synonyms: X argues for, X champions, X supports

Collocations: X explicitly advocates for, X consistently advocates for

Confusing Words

explicit vs implicit

These two adjectives describe opposite ways of communicating meaning, and both are frequently used in literary and academic analysis.

  • explicit — explicit stated clearly and directly, leaving nothing to be inferred or guessed; for example, ‘The policy document contains an explicit prohibition on the collection of biometric data without consent.’
  • implicit — implicit suggested or understood without being directly stated; present as an underlying meaning or assumption; for example, ‘The text never directly criticises the government, but the implicit message is one of profound disappointment.’

Memory rule: A reliable memory cue: 'explicit' means it is 'out there', fully expressed; 'implicit' means it is 'folded in' (from Latin implicare, to fold in). In analytical writing, identifying what is implicit in a text is often a mark of sophisticated reading.