upvote

[uhp-voht]

verb (used with or without object), up·vot·ed, up·vot·ing.

to cast a vote in support of (an online comment, article, etc.) by clicking on an arrow or other icon, usually affecting the post's rank or position on a website.

noun

such a favorable vote: One of my posts is getting lots of upvotes.

Origin of upvote

First recorded in 2005–10; up + vote