A term for “astronomer” appearing in a 1967 letter to Mr. Rang, a combination of the word Q. menel “the heavens” with the suffix -(n)dil “-lover”, so more literally “*lover of the heavens” (though specifically “love” as in “deep interest in”). It also appeared as the proper name Q. Meneldil, the third king of Gondor (LotR/1038).