Flux

Mamihlapinatapai es una palabra de la lengua Yaghan, uno de los lenguajes indegenas usados por los habitantes originarios de Tierra del Fuego, significa: "una mirada entre dos personas, cada una de las cuales espera que la otra comience una acción que ambos desean pero que ninguno se anima a iniciar".
Esta en el libro Guinness como la palabra mas sucinta del mundo.

Mamihlapinatapai (sometimes spelled mamihlapinatapei) is a word from the Yaghan language of Tierra del Fuego, listed in The Guinness Book of World Records as the "most succinct word", and is considered one of the hardest words to translate. It describes a look shared by two people with each wishing that the other will initiate something that both desire but which neither one wants to start. This could perhaps be translated more succinctly as "eye-contact implying 'after you...'". A more literal approximation is "ending up mutually at a loss as to what to do about each other".

The word consists of prefix ma(m)- reflexive/passive (second m before roots beginning with a vowel), root ihlapi (hl pronounced as /ɬ/, though in Yahgan it has also been described as similar to sl) which means to be at a loss as to what to do next, followed by stative suffix -n- and achievement suffix -at(a), and finally dual -apai, which in composition with ma(m)- has a reciprocal sense.