500 Portuguese-English Cognates: The Fastest Way to Build Your Vocabulary

What Are Cognates?

Cognates are words in two different languages that share a common origin — usually a shared Latin or Greek root — and have retained similar form and meaning. When you see the Portuguese word informação, you do not need to look it up: the root is identical to English “information”, and the meaning is the same. That recognition is not guesswork; it is shared linguistic heritage.

English acquired much of its Latinate vocabulary through Norman French after the 1066 conquest, and subsequently through the Renaissance-era borrowing of Latin and Greek scientific and philosophical terms. Portuguese, as a direct Romance language, evolved from Vulgar Latin itself. The result: both languages reached for the same Latin roots when they needed words for abstract concepts, institutions, sciences, and arts.

Why Cognates Are Your Secret Weapon

Most language courses start from scratch, drilling “hello” and “thank you” before moving on to nouns. But an English speaker beginning Portuguese is not starting from zero: you already have passive recognition of 500–800 Portuguese words on day one, and with five pattern rules you can reliably derive hundreds more.

The strategic implication is clear: prioritise non-cognate vocabulary in your active study. Your finite study time is better spent on words like saudade, agora, and ainda — words with no English equivalent — than on hospital or animal, which you already know. Use cognates to fill vocabulary gaps in reading and listening, while drilling genuine new vocabulary in your practice sessions.

This is the single most productive cognate pattern. Almost every English -tion word has a Portuguese -ção equivalent. The pronunciation differs (ção is roughly 'sown' in Brazilian Portuguese) but the spelling transformation is mechanical.

English abstract nouns ending in -ty (from Latin -tatem) become -dade in Portuguese. The transformation is consistent: drop the -ty and add -dade. Pronunciation: 'dah-gee' in Brazilian Portuguese.

English nouns ending in -ment (from Latin -mentum) become -mento in Portuguese. This pattern is especially productive for abstract and procedural concepts.

English adjectives ending in -ble (meaning 'capable of' or 'worthy of') become -vel in Portuguese. The meaning is identical; only the ending changes.

Adjectives ending in -al are often completely identical in English and Portuguese, or differ only in that Portuguese drops a final consonant. Pronunciation differs but meaning is transparent.

50 Perfect Cognates (Identical or Near-Identical)

Beyond the pattern-based cognates, hundreds of words are so similar they are immediately recognisable even without knowing the pattern. Here are 50 of the most useful:

20 Near-Cognates with Slight Spelling Changes

Some cognates require a small mental step — a dropped letter, a vowel shift, or a different ending. Once you spot the pattern, recognition becomes instant:

Warning: 15 False Cognates That Don’t Mean What You Think

Not all similar-looking words are friends. False cognates (“falsos cognatos” or “falsos amigos”) are words that look like an English word but mean something entirely different. Using them incorrectly can cause confusion or embarrassment.

For vivid memory palace scenes that make these false friends impossible to forget, see our dedicated article on Portuguese false cognates and memory tricks.

How to Use Memory Palaces for the Tricky Cognates

True cognates require almost no memory work — recognition is immediate. But near-cognates and especially false cognates benefit enormously from the memory palace technique, because they require you to override an incorrect intuition.

The key principle: a vivid, specific scene breaks the wrong association and replaces it with the correct one. The more ridiculous and emotionally engaging the scene, the more permanently it sticks.

For a complete guide to building a memory palace for Portuguese and encoding vocabulary spatially, see our article on Portuguese for Spanish speakers and the best way to learn Portuguese.

Frequently Asked Questions

Common questions about Portuguese-English cognates and vocabulary shortcuts.