Portmanteau generator
Fuse two names into one word and see exactly where each was cut. A portmanteau is only as good as its seam, so the report tells you which letters meet there and what that usually does to a reader.
What is it for
Or try one of these
Four portmanteaus and what they do at the seam
These are word blends rather than name blends, and they follow exactly the same mechanics.
Smog
smoke + fog
The textbook example. Both sources overlap on the o, which is why it fuses so cleanly.
Brunch
breakfast + lunch
Two letters from one word and four from the other, and still unambiguous, because both fragments are unusual.
Motel
motor + hotel
The seam sits on a shared t. Overlapping blends read as one word rather than two joined.
Podcast
iPod + broadcast
A blend that outlived one of its sources, which happens once a blend stops being read as a blend.
Why the cut point is the whole problem
A portmanteau works when a reader can still see both sources inside it. That is entirely a function of where you cut. Cut at a syllable boundary and the fragment you keep is a unit the source was already built from, so it carries identity on its own. Cut somewhere else and you get a string of letters that belongs to nothing.
The best case is an overlap, where both sources share a letter or two at the seam and the shared part does double duty. Smog is smoke and fog meeting on the o. Motel is motor and hotel meeting on the t. Those blends read as single words, not as two pieces glued together, and the difference is that one letter.
The methodology page documents how the engine finds those points, and portmanteau, blend, meshing covers how the vocabulary in this area fits together.
Common questions
What is a portmanteau generator?
A portmanteau generator fuses two words or names into one by taking the opening of one and the ending of the other. This one cuts at syllable boundaries rather than at the midpoint, and reports how much of each source survived into the result.
Can it make portmanteaus from ordinary words, not names?
It will run on any two strings of letters, and the splitting rule is about vowels rather than about names, so ordinary words work. Bear in mind the whole report is about spelling: it has no dictionary, so it cannot tell you whether the result means something.
Where should a portmanteau be cut?
At a syllable boundary. The midpoint of a word almost never falls where a syllable ends, which is why generators that cut in half produce so much output nobody would use. Where the two sources share a letter at the seam, that overlap is usually the cleanest cut of all.
How long should a portmanteau be?
Short enough to say without effort. Our report flags anything over eleven characters as long for a tag or a handle, and anything under four as keeping too little of either source. Between those, length is your call rather than a rule.