libertus, i: freedman; Trypho had been Regulus’s slave; after manumission, a freed slave still had close ties with his former owner (now called his patronus instead of dominus)
in illum: towards him (Regulus)
per se ipsum: i.e. because of Trypho’s own qualities, not because of the affection C. bears for Regulus
enim: gives reason why
fides, ei, f: loyalty
ut…debent: note indicative: ‘as’ not ‘so that’
bene meritos de se: who have deserved well of them
feceris…intellexerit: both future perfect indicatives
aderit…navigarit: perfect subjunctives in subordinate clauses in o.o. showing past time relative to main verb
navigarit=navigaverit; syncopated form
