This is a simple tri-tip rub recipe straight from a barbeque in Santa Maria..
-ation. suffix forming nouns. 1. indicating an action, process, state, condition, or result Compare-ion, -tion: arbitration; cogitation; hibernation; moderation. [from Latin -ÄtiÅn-, suffix of abstract nouns, from -Ätus-ate 1 + -iÅn-ion].
suffix. 1  a letter, syllable, or group of syllables added at the end of a word or word base to change its meaning, give it grammatical function, or form a new word (Ex.: -ish in smallish, -ed in walked, -ness in darkness). 2  anything added to the end of something else.