Poetry thoughts

I kinda wanna write some poetry, specifically in a format that starts with seven words and goes for seven lines, losing one word with each line. (Is that an officially named/acknowledged format somewhere? If so, what's it called?) But then I started overthinking things and now I feel pretentious while pondering, so.

Time to try and kill the part of me that cringes, I guess. Or at least do fierce battle with it.

Edit: "Harvest"

Thousands of years of agricultural science yields
a new branch grafted safely on
Our pact with the earth
and with each other
Zested and juiced
I taste
lemon

This is not the pretentious one I was pondering writing, for the record.

Tentatively calling this format "countdown poetry" until I learn it has another name already.