rog

Latin

ask, propose, request (especially to put a proposal to the people)

Variants:rogrogarogu

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About This Root

The root rog comes from Latin rogāre, 'to ask.' But this was no ordinary asking. In the Roman Republic, the most important kind of rogāre happened in the public assembly: a magistrate would stand before the citizens and put a proposed law to them, asking, 'Do you wish it, do you command it?' That formal request was a rogatio — a bill. So from the very start, rog lived in the world of law, politics, and authority. To ask was to propose; to propose was to legislate.

This political DNA explains the whole family, and you can read each word by combining the prefix with 'ask/propose':

- inter- (between, back and forth) + rogāre → interrogate: to ask someone again and again. The 'between/repeatedly' force turned plain questioning into relentless questioning — an interrogation.
- prae- (before, first) + rogāre → prerogative: literally 'asked before others.' In Rome, certain tribes (the praerogativa) voted first, and their lead often decided the rest. The right to be consulted first became the right that belongs to you alone — a privilege of rank or office.
- sub- (in place of, under) + rogāre → surrogate: to propose someone to stand in place of another. The Latin surrogare meant to name a substitute, especially a replacement official. Today a surrogate stands in for a parent, a teacher, or a missing person.
- ab- (away) + rogāre → abrogate: to propose a law away — to repeal it entirely. de- (down, partly) + rogāre → derogate: to propose a law down — to weaken or partially repeal it. From 'chipping away at a law' came the everyday sense of belittling someone: derogatory remarks chip away at a person's standing.
- ad- (to, toward oneself) + rogāre → arrogate: to ask something to yourself — to claim a right you have no business claiming. The same verb, arrogāre, gives us arrogant: a person who arrogates importance to himself, who takes for granted that he deserves more.
- pro- (forward, prolong) + rogāre → prorogue: originally 'to ask for an extension,' now to suspend (prolong the recess of) a parliamentary session without dissolving it.

The through-line: every rog word is a kind of formal request or proposal made to power. Interrogators demand answers, prerogatives demand precedence, abrogation demands repeal, the arrogant demand more than their share. Once you see rog as 'to put a formal question/proposal,' the family stops looking like random hard words and starts looking like a courtroom and a senate.

From Latin rogāre 'to ask, request, propose.' In Roman politics a rogatio was a formal bill put to the people for a vote, so the root carries the flavor of asking, proposing, and legislating. Prefixes split it into a legal-political family: interrogate (question between), prerogative (the right to be asked first), surrogate (one named in another's place), abrogate/derogate (propose to repeal or weaken), arrogate (claim for oneself), prorogue (suspend a session).

Memory Tip

Picture a Roman senator standing up to ask the assembly: 'Shall we pass this law?' That formal asking is rog. Interrogate = ask hard; prerogative = the right to be asked first; abrogate = ask to scrap a law; arrogant = he asks too much for himself.

Core Words Deep Dive

The few words from this family worth telling in full — one by one.

prerogative

The most surprising member: it has nothing to do with arrogance. prae- (before) + rogāre (ask) = 'asked first.' In Roman elections, the praerogativa tribe cast its vote before everyone else, and its choice tended to sway the outcome — so being asked first was real power. That 'first say' hardened into 'a right reserved to one person or office': the royal prerogative, a manager's prerogative. Think of it as the privilege of going first.

interrogate

inter- (between, back and forth) + rogāre (ask) = to ask again and again. The repetitive force of inter- is what turns ordinary 'questioning' into 'interrogation' — a relentless, pressured back-and-forth, the kind police or interviewers do. The verb interrogate, the noun interrogation, and the grammar term interrogative (a question word/sentence) all keep this 'asking' core.

surrogate

sub- (in place of) + rogāre (propose) = to name someone to stand in another's place. Latin surrogare meant proposing a substitute official. The legal 'replacement' idea spread everywhere: a surrogate mother carries a baby for another, a surrogate decision-maker acts for a patient, and 'X is a surrogate for Y' means X stands in as a proxy or stand-in. Whatever the field, a surrogate is a proposed substitute.

abrogate

ab- (away) + rogāre (propose) = to propose a law away, i.e. repeal it outright. It's the legislative twin of derogate (de- = partly): abrogate scraps a whole law or treaty, derogate only weakens or partly suspends one. Both come from the Roman habit of putting laws to the people — you could propose to pass a law, or propose to take one away.

Related Roots

querSimilar

quer/ques/quir (from quaerere) also means 'ask/seek': question, inquire, query, quest. Rough split: quer is about seeking information or an answer (inquire, query); rog is about formally proposing or demanding (interrogate, prerogative). If it feels like a search → quer; if it feels like a legal demand or claim → rog.

petSimilar

pet (from petere) means 'to seek, request, ask for': petition, compete, appetite. pet is the everyday 'ask/strive for'; rog is the formal, legislative 'put a proposal.' You file a petition (pet) to ask authority; authority exercises its prerogative (rog).