1. Avuncular (adj.) "of or pertaining to an uncle," 1789, from Latin avunculus "maternal uncle," diminutive of avus (see uncle) + -ar

2. Both the words Avuncular and uncle come from the Latin avunculus (literally “little grandfather”), which in ancient Roman times was specifically one’s maternal uncle — one’s mother’s brother

3. The word Avuncular originally comes from the Latin avunculus, meaning "maternal uncle," and strictly speaking the term describes the relationship between an uncle and his nephew. Uncles, by their …