optimist, encomiast, laudator [Lat.], whitewasher.
toady, toadeater†; sycophant, courtier, Sir Pertinax MacSycophant;
flaneur [Fr.], proneur [Fr.]; puffer, touter†, claqueur [Fr.];
clawback†, earwig, doer of dirty work; parasite, hanger-on &c
(servility) 886.
yes-man, suckup, ass-kisser [Vulg.], brown-noser [Vulg.],
teacher's pet.
Phr. pessimum genus inimicorum laudantes [Lat.] [Tacitus].