In common English usage people refer to their mass as weight. Nobody says "I mass 75 kilos". Likewise in modern Hebrew.
Do any languages actually use a variation of the phrasing "I foo 75 kilos" in everyday speech, where the word foo refers to the physical concept of mass and not to the force of weight.
Rephrased by jick: Is there any language whose everyday word for "mass/weight" is their physics jargon for "mass", instead of "weight"?
Not an answer, but I'd like to consider the question from another angle. It's pretty unlikely that a language would have separate everyday words for the physical notion of mass vs. weight. But, once its speakers start to learn modern physics, they obviously need different physics jargon for mass vs. weight. Then the question becomes: Is there any language whose everyday word for "mass/weight" is their physics jargon for "mass", instead of "weight"?
Korean has an analogous example: 힘(him) is an everyday word for "force/power/energy", used in many expressions like "apply a force" (e.g., push something), "is powerful" (e.g., of an engine), "conjure up energy" (e.g., to do homework), "exhausted/out of energy", and so on. However, when you do physics, you obviously can't use the same word for force/power/energy.
Hence, him was chosen to mean "force" in physics. For the physical notion of "power", Korean has a separate jargon, 일률(illyul), but it's such an obscure word that I've never seen it outside of physics textbook.
The end result is that, if you ask "Does Korean use 'force' instead of 'power' to describe how powerful a machine is?" then you could legitimately answer yes. However, it would be also somewhat misleading - it doesn't mean Korean speakers have a deep understanding of the underlying physical concepts and somehow find "acceleration multiplied by mass" (=force) a better match than "energy divided by time" (=power).
It just means that when the first Korean physics textbook was written, the authors decided the word him was a better match for "force" instead of "power", and then they obviously had to make up a different word for the physical concept of "power".
This answer provides likely constraints of how to find that language if it exists. Because the constraints are so restrictive, I suspect that no such language exists.
Unless it is one of the modern constructed languages, I suspect that so such language exists due to the language originating long before the scientific definition of mass was different than that of weight, taking distance from the center of the Earth into account.
It would need to be a language that originated in a culture that had both beam scales (to measure mass independent of the degree of attraction of gravity) and spring scales (or the like) to measure gravitational attraction. Even still, the spring-scale-esque family of devices that measure gravitational attraction are modern inventions, appearing somewhere between 1770 and 1838, depending on which invention we accept as ‘the first one’. Not many nonconstructed natural languages have been fluid enough since 1770 or 1838 to transform long-established words & concepts for such fundamental concepts as: how much matter or how much gravitational attraction does that entity possess/cause?.
It would also need to be a language & culture that extended over enough geographic or topological expanse on Earth that its speakers would notice difference in weight due to altitude for the same mass. Most languages and cultures during the era of formation of their language (other than that of the constructed languages) did not have such an expansive presence across a vast enough region of Earth as to speak the language at both drastically lower and drastically higher altitudes to ever notice an altitude-caused difference in weight in, say, transacting business commerce of any kind—hence needing a mass-only measurement device instead of a gravitational-attraction measuring device across the expanse of its speakers or their frequent direct trading partners.
In Hindi, we use 'bhaar'(भार) for weight. It is a force in physics. But, like weight, it is also used for mass. Bhaar has come from Sanskrit. Bhaar >>> Bar (Latin).
In physics, mass is called 'Maatra' (मात्रा) or occasionally 'Pindamaan' (पिण्डमान) -- literally "value of the body".
Frame Challenge
When someone says "I weigh 75 kilograms" they are not necessarily using the wrong verb: assume the verb is correct, but they have chosen the wrong unit of measure.
Saying "I weigh 75 Decanewtons" would be approximately correct scientifically, and having the force unit in common usage would alleviate the need to evolve two different verbs.
Are you trying to find out if there is a language where speakers' casual expression of their favorite body metric is scientifically proper?
If so, one could argue that the question is improperly framed, and could be re-stated as is there a language where everyday speakers routinely use a unit of force to express their weight?
