Affectionate
late 15th century (in the sense ‘disposed, inclined towards’): from French affectionné ‘beloved’ or medieval Latin affectionatus ‘devoted’, from affectio(n- ), from afficere ‘to influence’ (see affect2).
wiktionary
Partly from Latin affectionatus, partly from affection + -ate. Doublet of aficionado.
Either from the adjective, or from affection + -ate (modelled on Middle French affectionner).
etymonline
affectionate (adj.)
1580s, "fond, loving," from affection + -ate (1); suggested by French affectionné. Early, now mostly obsolete, senses included "prejudiced" (1530s), "inclined" (1530s), "passionate" (1540s), "earnest" (c. 1600). Other forms also used in the main modern sense of this word included affectual "zealous; affectionate" (early 15c.), affectuous "eager, loving" (mid-15c.), affectious (1580s), from Latin affectuosus. Related: Affectionately.
