What is the meaning of Rimer?

A tool for shaping the rimes of a ladder.

A rhymer; a versifier.

stack, heap

to rhyme (of two words, whose final syllables are the same)

to rhyme (to make rhymes)

first-person singular present active subjunctive of rīmor

present of rime

to recount a tale, especially by rhyming

Source: wiktionary.org