δειλοί [2 verses](adj pl masc nom) "Fearful" is deilos, which means "cowardly", "miserable", "wretched", "low-born," and "poor." There are other Greek words that mean fearful,  for example deidêmôn. without the sense of being low-born. Like the Hebrew word for fearful, yare', deidêmôn just means having fear.  - There are many Greek words that mean "fearful" but this word has sense of low-born, This word is only used by Jesus twice, here and in the parallel in Matthew. The sense seems more like "cringing" giving the word a feeling of being inferior.

δειπνήσω, [1 verse](verb 1st sg aor subj act) "I may sup" is deipneō , which means to " make a meal" and "entertain." "I may sup" is from a Greek verb that Jesus only uses here that means to "have a meal" and "entertain."

δείπνοις [7 verses] (noun pl masc dat) "Supper" is from deipnon, which means "a meal," "noonday meal," and, generally, "food." -- "Feasts" is from a word that means "a meal," "noonday meal," and, generally, "food."

δέκα [11 verses](numeral ) "Ten" is from deka, which means the number ten. -- "Ten" is the Greek word for the numeral "ten."

δεκτόν. [2 verses](adj sg masc acc) "Acceptable" is from dektos, which means "to be received", "to be acceptable", "to be grasped", and "to be understood." -- "Acceptable" is from an adjective that means "to be received", "to be acceptable", "to be grasped", and "to be understood." Its form modifies "year", but it appears as the end of the verse. This is an uncommon word for Christ to use.