A word for “still” or “yet”, or more exactly “up to now, here” (PE22/157), clearly a combination of √TEN “end in sense of point aimed at” with √SI “here, now”. As examples, Tolkien gave the sentences “it is still here” and “is it here yet”, so it clearly means “still, yet” in reference to the present. It may be contrasted with tenta meaning “still, yet” in reference to the past, or tenna which means “still, until, unto” more generally with past/present/future implied by context.

Based on the gloss “up to here”, it seems tensi can be used spatially as well, meaning “until here or this point”.