1580s, "fond, loving," from affection + -ate (1). Early, now mostly obsolete, senses included "inclined" (1530s), "prejudiced" (1530s), "passionate" (1540s), "earnest" (c. 1600). Other forms also used in the main modern sense of the word included affectious (1580s), affectuous (mid-15c.).
1. They seemed devoted to each other and were openly affectionate.
2. This collection of letters is affectionate, candid and wickedly funny.
3. He was by nature affectionate.
4. He is very affectionate towards his children.
5. She is an affectionate child and loves to be hugged and kissed.