humiligi

Decode it and it is completely transparent: humila is humble, -ig- means to make or cause, so humiligi is to make somebody humble. Its partner is humiliĝi, to become humble, to be brought low - the thing that happens to you rather than the thing you do to someone else.

Transparency is not the same as safety, and this is a word where the built meaning and the used meaning have drifted apart. In practice humiligi sits at the harsh end. It is closer to English humiliate than to humble: it implies the person's standing was taken down in public, and it is not a compliment about anyone's character. If you want the warm English sense - a humbling experience, an honour that makes you feel small in a good way - you want a different sentence altogether, something built on modesta or simply mi sentis min tre malgranda.

The humila page makes a point that carries straight over here: there is no -il- suffix hiding in this word. Humil- is one Latin root, humiligi is that root plus -ig-, and the tool ending has nothing to do with it. Learners who have just met ŝlosilo see -il- everywhere for a fortnight, and this is one of the words that punishes it.