NOTE.—The suffix -tor is occasionally appended to noun stems; as,—

gladiātor, gladiator (from gladius).

2. The suffix -or (originally -ōs) denotes an activity or a condition; as,—

amor, love; timor, fear; dolor, pain.

3. The suffixes -tiō (-siō), Gen. -ōnis, and -tus (-sus), Gen. -ūs, denote an action as in process; as,—

vēnātiō, hunting; obsessiō, blockade; gemitus, sighing; cursus, running.

NOTE.—Rarer endings with the same force are:—

a) -tūra, -sūra; as,—

sepultūra, burial; mēnsūra, measuring.

b) -ium; as,—