The “sh” sound — often represented in writing as an “x” — transformed in all different ways to the “j” letter (and the accompanying mouth-clearing sound, influenced by Arabic) as late Latin turned into Spanish. See lots of examples: sherry/jerez, for example.

Here’s another: the common Spanish word, dejar, meaning, “to leave to the side” or “to put down” or to “put away” or to just “let go.”

Dejare comes from the Latin laxare, meaning, “to loosen”. From this same root, we get a few English words — which did not go through the x‑to‑j transformation Spanish did including:

• Lax –  which basically means to loosen up, so it is similar conceptually!
• Laxative — this loosens up the remains of your food inside your body so you can excrete, to be euphemistic.
• Relax — this is a loosening of your muscles and body and mind as well. According to this same pattern, we also know that relax in Spanish is, relajar.

See more examples of this same pattern including lejos and leash here.

Spanish for “lie” (Mentira) comes from the Latin mandacium for the same, which in turn, comes from the earlier Latin menda for “defect; fault”. But the Latin Menda comes from the Proto-Indo-European root *mend- meaning the same, fault or defect.

Thus we see an interesting transition over time: defect turned into lie. The word took on more and more agency: the problem didn’t just happen; it was an explicit lie!

The same PIE root *mend‑, in English, took a different route: via French, it turned into the modern English amend and amendment. Thus, in English, “defect” turned into the more accidental, less bad, “lets make a change!”.

We can see the parallels easily: the m‑n-t of mentira map to the (a)-m-n‑d of amend. The d- and t- transformation is very common and the sounds often interchangeable.

We also have the English mendacious that is a direct parallel to mentira… but everyone seems to have forgotten that word.

Nacer comes from the Latin for the same, nascere: “to be born.”

From the Latin nascere, with an added prefix of re- meaning “again”, we get the Renaissance — literally, “the rebirth”!

Thus, Nacer and Renaissance are close cousins, and we can see that the n‑c of nacer maps to the ®-n‑s of renaissance.

The Spanish for “blue,” azul, is originally an Arabic word referring to a particular type of valuable blue stone, the lapis lazuli. In Spanish, the word degraded over time, and the l- was lost (as though it was the the french l’ for “the”) and we were just left with azul for just “blue.”

The English for azure — which is really just a shade of blue! — comes from the same root, although azure still retains a luxury connotation that was lost with the simple blue implication of azul in Spanish.

Many languages, including Spanish, have an ‑l- and ‑r- shift, where, over time, the ‑l- and ‑r- sounds are swapped. We see this here, as the a‑z-l root of azul maps to the a‑z-r root of azure.

Burro is the Spanish for “donkey” and it is — shocking, shocking! — related to the English… burrito, that Mexican food we all know and love. The Spanish itself comes from burrus for the crimson/maroon color, which comes from the Greek pyros for “fire.”

But how did a donkey become a burrito?

The answer is lost to the annals of history but the two most common theories are: they look like those packs that you roll up and hang on either side of a donkey; or they look like donkey’s ears. In either case, the imagery should make the word easy to remember!

The Spanish for “to pray” is rezar. Although not obvious at first, it is from the Latin recitare, from which we get the English — surprise, surprise — recite. The “cit” grouping was conflated into a “z” sound, so the English (and Latin) r‑cit‑r maps to the Spanish r‑z-r.