For the past couple of weeks, Webb’s Weird Words has been looking backward.

To be specific: On March 19, we reviewed the Greek and Latin origins of medical terminology; and then on 3/26, we covered Medieval terms that are also health-related — like phlegmatic, bilious and lily-livered.

Now that spring (and April!) have arrived, we’re again moving forward with a trail-blazing roster of oddball words you never heard before.

Here are 10 — all nouns except where indicated. (And for the record, I’ve fooled around with my usual alphabetical order here.)

Albronguino (al-bron-GWEE-no) – Tough, twisty vine found in much of Central and South America. Growing so densely that it often looks like a bush, the plant produces nettles that cause a painful skin rash in some humans; its name comes from the indigenous Atlatl tribe of Paraguay’s Killi-killi Peninsula.

Praq (PRAHK) – Smallest monetary unit in several countries that were formerly part of the U.S.S.R. (specifically, Moldova, Kyrgyzstan and Ziurtzybad). Plural form: praskva.

Rotfluxanolol (rot-fluks-ANN-oh-lol) – Super fun to say, this is a synthetic compound (i.e., man-made) that forms the active ingredient in medications used to treat diabetes and low blood pressure. Etymologically, the first syllable is actually an abbreviation (“reverse-operative thyroid”), while flux indicates its unique ability to change with the patient’s metabolism.

Ikomikkak (ick-OH-muh-kak) – Eskimo word for a fast-moving sled with broad runners made from whalebone.

Lzurtz (ZURTS) – Sure, our language has silent letters in thousands of words like write, knack and psycho; but this is literally the only word I can think of that starts with a silent “L” (though even that letter is unheard in such words as calm and talk!).

In any case, like so much oddball vocab we’ve looked at in these articles, lzurtz is a Yiddish term; it refers to an unusually stingy person — often a parent who does not provide sufficiently for his or her kids.

Follinfert (FALL-un-furt) – Another exotic plant like our first word above, follinfert is a non-flowering, ground-level creeper that creates a thick matting on the jungle floor. Officially, the term’s origin is uncertain — though as with albronguino, it may be an anglicization of some native tribal word.

Ooo (OO-oh) – While it looks like an interjection that might be admissible in Scrabble (“Ooo, is that cool or what?”), this is actually the zygote from any of several deep-water fish — including the eelpout and the angler-dangler.

Onlifeyk (OWN-lee-faik, adj.) – At last — an adjective rather than a noun! A recent slang term that somehow never caught on, this comical word actually means what it sounds like: “not real, true or genuine.” (Taken from the handy Oxford Retro-Future Colloquial Dictionary.)

Laphitov (LAFF-it-off) – Rare term for what one feels when reading something that is hard to believe.

Silliyu (silly-you, interj.) – What the author says to anyone who made it all the way through this article without getting suspicious. (In which case: Did you know gullible is not in the dictionary?)

If you’re still confused, try taking the first letter of each entry here and see what that spells.

Or check Tuesday’s date.

Author notes: There were plenty of clues for you, dear reader! The third word, for instance, contains two common abbreviations that did catch on. And follinfert … well, I’m sure you can guess how I came up with that — unless you fell for it.

This column owes a huge debt to my late father, whose 68-year journalistic career was marked by frequent 4/1 gags. Still miss you, Dad.

No fooling.