find it difficult to do, be unable to do

61 years of age (in East Asian age reckoning)

overheating / superheating

to overheat / to superheat

(archaic) second-person singular pronoun: you, thou

(archaic, obsolete) second-person singular pronoun: you, thou

(archaic, obsolete) second-person singular pronoun: you, thou

(vulgar) second-person pronoun: you / (derogatory) first- or third-person reflexive pronoun: me, myself, himself, herself, itself, oneself

(vulgar) used as an insult to the second person: you!

(archaic, obsolete) second-person singular pronoun: you, thou